AI is predictive, not intelligent

I hope you haven’t missed the big AI revolution going on right now? No? Yes? YES? You have no idea about it? Where do you live? On Mars? Ah OK, you were kidding. AI is being talked about everywhere, new devices like the Humane AI Pin or the Rabbit R1 are very much about it, and everyone involved is scrabbling around like mad for venture capital to fund their incredible ideas.

Having access to these language models is immense, right? We can sit down, whip out our AI, and enjoy a better than life experience. We can ask it questions and often it can come up with remarkably lucid explains. It seems intelligent. Here’s a conversation I’ve just had with ChatGPT’s latest model, after I asked it to settle into a British conversational style:

Me: The weather’s nice isn’t it?
ChatGPT: Oh, absolutely! It’s a lovely day, isn’t it? Perfect for a stroll in the park or perhaps a spot of tea in the garden. How are you planning to enjoy the fine weather?
Me: I have to work, sadly. In fact I’m working right now.
ChatGPT: Ah, that’s a bit of a shame, isn’t it? But needs must, as they say. Hopefully, you can steal a few moments to enjoy the sunshine, even if it’s just a quick breather by the window. Anything I can help you with to make your workday a tad brighter?
Me: Give me a joke to help me get over my vague sense of imposter syndrome!
ChatGPT:
Of course! Here’s a bit of light-hearted humour for you:

Why did the scarecrow win an award?

Because he was outstanding in his field!

Hopefully, that brought a smile to your face. Remember, everyone feels like an imposter at times, but you’re doing brilliantly!

It’s a decent conversation, although no British friend I know would chat like that. They’d be less polite and more vaguely abusive, to be honest. But it does seem intelligent. Then I can ask it a tricky question:

Me: I’m struggling with a maths question. I have a formula for a parabola, and I need a graph and the location of the y intercept: f(x)=3+7

ChatGPT:

No worries, I’m happy to help with that. Let’s break it down.

The given function is:

To find the y-intercept, we need to determine the value of the function when =0. Plugging =0 into the equation:

(0)=3(0)²+7=7

So, the y-intercept is at (0,7).

Now, let’s plot the graph of the function and visualize it. I’ll create a graph for you.

Graph by ChatGPT

Here you go! The graph of  shows a parabola opening upwards. The y-intercept, marked in red, is at the point (0,7). I hope this clears things up for you!

That’s so freaking clever!

Except… except… it’s not actually clever.

Let’s try asking it a question you can use on a seven year old child who would almost universally get the answer right:

As I was going to St. Ives, I met a man with seven wives who was going to St Ives. How many people are going to St Ives?

I think you’ll agree that this riddle is pretty simple. I’m going to St Ives, the man is going to St Ives, and the seven wives are going to St Ives. Look at this madness I got back:

The riddle goes as follows:

“As I was going to St. Ives, I met a man with seven wives, Each wife had seven sacks, Each sack had seven cats, Each cat had seven kits.”

The key detail in the riddle is the first line: “As I was going to St. Ives.” The person telling the story is the one going to St. Ives. The man with the seven wives and all the others are simply met on the way; the riddle doesn’t specify their destination.

Therefore, only the narrator is confirmed to be going to St. Ives. The answer is:

1 person (the narrator) is going to St. Ives.

And that reveals the weakness of large language models. There’s no inherent cleverness. What it does is to look for what it thinks you’re talking about then infer an answer using a combination of techniques, and it then picks what the most likely question is then creates a response based on what it thinks is correct. If the problem is very well known, it can do some really quite incredible things. But if the problem given to it is a novel variation of an old problem it will absolutely fall apart.

Life is full of novel problems. Don’t be misled by the clever bullshit attitude of a large language model, but at the same time, if you know its limitations, it can be a wonderful tool. Use it wisely and carefully, or there’s a risk it’ll make a fool of you. And yes, the post image at the top is, indeed, AI generated – because I have bugger all budget and this is a personal blog. Bite me!

I broke my heart in five places and got it fixed

A year ago, I was sitting, shorn of all body hair and waiting to go in for a five or six hour operation. I knew the next two weeks would be hell.

It’s hard to explain the odd calm that came over me as I sat there, waiting for the biggest operation of my life. I didn’t feel happy. I didn’t feel miserable. It wasn’t as if I’d been feeling terrible. I’d just had one bad morning two and a half weeks earlier where I felt rough, then more rough, then really really rough, then fine again.

It’s weird. You see heart attacks on TV and you get this idea of a mad bad event where you keel over, clutching your heart in agony. But it doesn’t really work like that. The night before I’d felt tired. In fact, for a few years I’d been feeling like hard exercise was a challenge. It took me an age to warm up for a sport, and then I’d be fine. But the first half hour was a chore. And if I’d eaten I was basically useless for an hour or so.

I put it down to age and asthma.

I wish I hadn’t. But thankfully, I got lucky, in a way.

So driving along to work I felt this tightness in my chest, a tiredness, and a general malaise. So I decided, as was sensible, to pick up some vitamin tablets on the way to work. That’s what you do when you’re tired. Take vitamins, and get plenty of sleep. That was my plan. But by the time I got to the counter, I felt even worse and decided to mention the chest tightness to the chemist. She very clearly said I should go to the walk-in centre and get checked out. Instead, of course, I decided I’d get it checked out at some more convenient moment. But by the time I got back to the car I realised I was very out of breath just walking slowly.

I was having a heart attack. I didn’t know it yet. I looked at my Fitbit on my wrist and it said my heart was doing a nice old 70 bpm. Normal enough for me. So why was I puffed out? Must be an asthma thing. But I decided that I would go to the walk-in centre after all. I drove, feeling increasingly out of sorts, parked quite badly, and shuffled in to reception.

A few hours later, I was hugging my wife in A&E at the Royal Liverpool Hospital. I was worried, but not terrified. The doctor dealing with me said “I’m concerned but not worried.” That was a relief. The diagnosis was swinging between heart attack and pericarditis. I was atypical. Relatively young, slim, non-smoker, evidently in reasonable health, and moderately active for someone desk-bound at work.

But they couldn’t satisfy themselves. The A&E cardiologist said I had to go in for observation. They observed me.

Observation is boring

I was sent up to a cardiac observation ward where there were a range of folk from really quite ill and very elderly to me. By then I was feeling fine, quite chirpy, and generally comfortable. My biggest complaint was that the ward was a bit noisy, with an elderly chap who was rather confused causing the most noise. But hey, I was alive, the food was tolerable, I had my Kindle and my phone. I started to obsessively read about the heart, interpreting ECGs and so on. It’s all quite fascinating. And complex. I won’t pretend a lot of it stuck. But now I knew the possibilities.

The rather wonderful Mr Fisher, my cardiologist at the hospital there, did a series of echocardiograms. He felt that I was 95% likely to have pericarditis, in which case a few tablets and I’d be right as rain within a couple of weeks. However, there was a 5% chance of something else, so he’d scheduled me for an angiogram at the Liverpool Heart and Chest Hospital. If they found something, they would be able to stent me there and then and I’d be on the path to recovery.

95% chance of some tablets and everything was fine? OK, I cried a little and started looking forward to the family holiday we had planned.

Angiograms feel weird

An angiogram is where a fine catheter is inserted up to the heart, then a substance that can be detected using x-rays is released into the heart. This allows the surgeon to get a visualisation of the heart. It’s really interesting. And a little unpleasant, but definitely not much more unpleasant than a longer dental visit. It is surgery of a sort, and done carelessly it can do damage, so they always have someone on standby ready to whiz your chest open and do some emergency surgery.

Thankfully it’s usually very safe. It just feels odd, sitting there with this big machine whizzing around you imaging your heart, a massive TV screen to your left, and a very precise talking and unambiguous surgeon on your right instructing his team. I was anxious. He noticed that, and he said “just give him the valium. Now”. At least I think it was valium. In some ways my memory is a bit fuzzy.

Because then, as he finished everything up, he explained that a stent wouldn’t be possible and I would need what is called a coronary artery bypass graft. Four, maybe five. I… didn’t like that news. I felt shocked, scared, and unhappy. I’d gone from probably just an annoying health scare to looking towards having my chest sliced open and my heart operated on.

How do you even operate on a heart? It’s not supposed to stop. Right? Stopped heart = dead. No?

The wait

So then you just wait. And wait. They wouldn’t let me leave the hospital. I was at risk of another heart attack, the blockage was so bad, and they needed my system to flush out the drugs I’d been given when I was suspected of a heart attack. Risks, apparently. It took two and a half weeks from admission to operation. Long enough to think about my mortality, prepare some things, and do weird things like have a company meeting in the middle of the ward to ensure everyone knew what to do, and how.

It was an interesting time. People came and went. I got to know some, and would chat to them as they faced their fears. Most people were older, most were as surprised as I was. What really surprised me is that the image most of us have of people waiting for a bypass wasn’t really fulfilled. Sure, you had the smokers and the fatties. But loads of us were relatively active, relatively slim people. Not that athletic, mostly, but in a line-up of people most likely to need a bypass, you wouldn’t have picked most of us.

Sometimes I’d chat with people facing the operation the next morning and they were, usually, very anxious and worried. Some said things like “well, if I die… I won’t know it. It’s my family I worry for.” Others joked about having their last cup of tea. There’s some morbid humour, but it felt like a release too. A way of expressing anxiety with a laugh.

But the fact so many of us weren’t people who’d neglected ourselves felt terribly unfair. I struggled to deal with that.

Could’ves and should’ves

One chap, about ninety years old and looking in remarkable health, was in for a new valve. He said without it he’d likely not survive the year. With it he had a good chance of another five years. Yes, there was a risk, but as he said “I’ve had a good life.” I guess by the time you reach your nineties you come to a realisation that you can’t really have that long left, no matter what you do.

I talked about my own misgivings. I’d been a bit plump in my twenties, and I enjoyed partying and chocolates. I’d also been a hard working type with little time to do lots of exercise. He smiled and said something like “Life’s full of could’ves and should’ves, but they really don’t matter. You have to deal with the present and make things as best you can for the future. The past has gone. Leave it be.”

He was so right.

Getting closer

As the date loomed I thought I’d get increasingly anxious, but it just stopped. I wasn’t aware of being pumped with chill-pills. I’d seen more frail people go off to operation, and I’d chatted with them as they recovered. It was clearly hard going for them, but they lived and they seemed in good spirits. It’s a very hard operation to go through, I knew that, but now it felt tangible. I also had visits from colleagues, friends and family, so each day I had something to look forward to.

I did do some morbid things. I wrote a note to my family, should I die. I have no skeletons in the closet, but wanted to ensure they knew where to find financial stuff. I knew that they knew that I loved them. I kept the schmaltzy stuff to a minimum. Just crack on. What needs to happen has to happen.

The day itself

Now, this is where it gets more interesting, really. First thing you have to do is shave off all body hair below the neck. You’re handed a quality hair trimmer, with a sterile trimming blade, and pointed to the bathroom. Bzzzzzz! It takes for ever! And those things bite! Once on the balls. I wasn’t really sure where to stop, and I couldn’t really do my back on my own, so I left that, assuming they knew that too.

My operation, schedule for the afternoon, meant no food or drink. I read a bit, chatted with Romana, and refused to say goodbye. I was coming back. I knew it. I was confident. I’d already met the surgeon, and he seemed confident, precise, and concise. I like that in a person. We talked a little about technicalities and how the procedure would be done one me, what arteries they were harvesting and from where. I’d also spoken to another surgeon who I assumed assisted. He poked me and checked how various bits of me worked. I had a breath test. I had a lot of tests. But the day of the operation itself was quiet, really.

So I knew the operation was going to be a beating heart one, without using a heart-lung bypass machine. The attachment of the grafts would be done using some weird sucker machine (maybe called an Octopus) that would stabilise my slowed down heart, but at no point would it be stopped. Amazing. Each stitch carried out between the beats of my heart on arteries just 1.5mm wide.

And then it comes. The porters arrive, you give everyone else on the ward a wave, they say good luck, and you go. All the stuff you have is bagged up and taken away. You don’t need it the next day, and if there are emergencies stuff can get lost, so it’s better if a friend or partner handles it.

Then you wait in a pre-operation room with clouds painted on the ceiling. It made me think of going to heaven, but it was better than white tiles, I guess. That was when I chatted with Romana, ensured she knew I loved her, again, and waited. And then they come for you. You say goodbye, and off you go to theatre.

There, the anaesthetist I’d met before, hooked me up to a skullcap for monitoring my brain, and started preparing me with those injection thingies. A theatre nurse chatted and joked with me. Clearly there to keep my mind off things and keep me calm. And the moment comes. The anaesthetic is injected and you’re switched off.

It really is like that. You don’t have any awareness.

I’m awake and alive!

Actually, I remember a vague moment of having something pulled out of my throat, being conscious, and then out of it again. According to Romana when I first woke I became agitated, so they sedated me again for a while. When I next woke I had a nurse talking to me, giving a button to press with instructions about how it delivered morphine and would ease my pain. I couldn’t overdose with it apparently.

I tried.

I clicked that button again and again! Not to deliberately kill myself or anything, but because it was so nice! However, it’s rate limited. Keep pressing and it just beeps. When it kicks in you feel this warmth, and the pain goes. It’s a very nice drug and I’m not surprised people get addicted.

Romana came in. I was… not really in the best place. I was in pain. I felt like I’d been hit by a truck. I don’t even know if I have the order of events right.

Click. Oh, that lovely morphine button.

We chatted a little, but I remember very little. I had an oxygen mask, I was uncomfortable. I realised I had a urinary catheter in place, so I could stay still. She left, and I think I slept.

Intensive care is weird

One thing I never realised from films, is that intensive care really is just that. It’s actually, in this case, Post-Operative Critical Care. A nurse is stationed at the end of your bed and watches you constantly in the first night. At one point I remember being woken.

“David… can you breathe please?”

I took a gasp.

“You’re worrying me with your apnea,” she said.

I took a few breaths. I felt as OK as I could manage.

I could only see one other person on the ward, and he would wave at me and give me thumbs up. He couldn’t take his mask off. We waved and smiled at each other. I never saw him on the cardiac recovery ward, but he could have had different conditions – they do other kinds of surgery there beyond hearts.

The next day was a bit less painful. You get x-rayed in your bed, poked, prodded and checked. My blood pressure tended towards the low side, but you could see that at the 24hr point I was getting a lot less attention, all the pipes in my chest were out, stitches put in, and I was being made to sit for a while now and again. The second night I was definitely left to my own devices for a bit.

After a few checks the next morning, it was off to recovery.

Not my best, look, just two days after the operation. But alive and happy about it!

The poo of doom

Each day you feel better. You need less and less supplemental oxygen. You start eating normally again.

I’d also heard that after a major operation, you get constipation. Had I known this I’d have been tempted to stop eating two days beforehand!

Because after a few days, you realise you have to poo. Thankfully this comes once you’re mobile again. But even walking fifteen metres to the bathroom is still tiring on the third day. The poo won’t wait. Nor should it. Because the longer it takes, the worse it’ll be.

Man, you’re giving birth.

Seriously. I sat in the bathroom. It started to come. Very very slowly. It. Was. Huge.

And a huge poo is going to be unpleasant, no matter how much time you give it. I feel for heroin addicts dealing with that. Their piles must be quite something.

I strained, but only a little as I’d been warned not to. So I had to tolerate this thing… half in, half out. Slowly but surely, little by little, it came. But it seemed to never end. I swear, I spent an hour in that bathroom, swearing, cursing, and wishing I’d never been born. And if I pushed too hard my heart rewarded me with a palpitation or to and I’d feel breathless.

The thought occurred to me… what if I died right now? A poo, half the way out of my arse and me, on the floor? That would be the last thing the world saw of me. Ew.

Deep breath.

Carry on. Wait. Be patient.

Eventually, it was over. I hobbled back to the bed, grabbed my oxygen mask, and had a nap. I’d deserved it.

Eventually you get to go home

Six days after being open and lying surrounded by dedicated specialists, I was going home. They test you to see if you’re capable of being trusted. You have to walk a certain distance, unaided, and climbing and descend a flight of stairs. A group of you go together for this test. We all did it. There was some sort of air of celebration around us. We were survivors! This thing wasn’t going to defeat us after all! Each day we were stronger!

The homecoming

Getting to leave the hospital is a joy. I’d been taking walks and stepping outside anyway. I was very keen to be moving. I felt frail and slow, but it allowed me to feel like life was going to improve.

But in spite of that, on discharge, you’re given your bag of drugs and wheeled to the door. Once you’re off in your car, you’re no longer their problem. Until then though, they have a process to follow and they’ll stick to it!

As you can see, I had the weird hospital socklets and stockings on. The compression stockings help reduce the chance of a blood clot forming in your legs, and reduce swelling. You can see from this photo that my left leg, from which a vein had been harvested, was definitely bigger than my right

And that’s it. The next phase is about getting back to full fitness, work and leading a full life. I surprised myself, and I’ll share more soon. I’m planning to discuss stress, work-life balance, family and a few more things. And this blog may even come back to life a little bit. I’m bored of helping Facebook and friends to keep their platforms populated with content that is then lost in a silo. Longer writing definitely has a place. Please feel free to join me here.

Cuban bathrooms

Cuba has, shall we say, a more relaxed approach to electrical safety than some other countries. In part because it’s poor – good electrics are expensive – but also, I suspect, because of some ignorance and lackadaisical enforcement too.

But I was still surprised to see this shower in our first B&B:

Cuban Shower

I will say one thing, however – in a lot of the finer houses the bathrooms remain as they were in the fifties, prior to the revolution. It’s an interesting perspective on design standards of the time, and mostly things were pretty good if you could afford good tiles. The fact that a lot of these bathrooms are still serviceable fifty years on is pretty impressive.

Videos are back!

Ok, it’s supposed to be video of the week… yet since Christmas I’ve not been updating this section. My Bad!

Now, I’m not about to go back to updating weekly. I’ve been busy, I’ve got trips planned, and it’s hard to update this section every single week unless some of you start sending me quality material!

But I enjoy trawling the netterweb and have come across some gems to share with you until normal service is resumed.

The Paris-Dakar rally isn’t the safest one in the world, even for photographers

Safety standards on track days have improved somewhat since the seventies. I especially loved the four-up driving in the Beetle Cabrio…

Streetluge shows that even if our beloved internal combustion engines are banned by green requirements we’ll still have ways to race. This video nicely explains what it’s all about although there’s a bit of overuse of words like dude, buddies, and the like but they’re American so you have to make allowances. I’m trying to find videos of the rather less slick Brazilian stuff I saw years ago – that was amazing. But for now:

Bike messengers are some of the most hardcore cyclists in the world. They ride day in, day out, in the busiest cities. They dodge between the traffic, pick up speed by grabbing onto trucks and cars… and they deliver stuff. Quickly. They may have a disrespect for the rules of the road, and even for pedestrians and other more sedates cyclists but you can only respect the skill of some of them. Sometimes they even arrange races:

Thanks for everyone’s patience while the site went quiet. There’ll be more soon.

When Your Mic Breaks, Improvise!

Sometimes you record a great hillclimb run (this one up Loton Park) only to find a technical glitch has spoilt the recording. So if that’s the case, you must improvise….

The chap who did the sound to this has the respectable job of doctorin’. You might think he’s self-medicating, but actually he’s like this naturally!

It’s a good video of a run up Loton Park’s Hillclimb too. And accurately captures the feeling everyone gets the first time they reach the final bend, Museum.

Welcome to the Home Page of Obsessive Compulsives UK

Welcome to our site – it’s taken a lot of work to get this far and…

Catherine-Tate-part-two

…hang on, let me just check the site’s still up. Oh I’d better save this file just in case. Hang on. Right where was I? Oh yes, we’re trying to do a lot of work here to help folk who… wait a minute, I think I can hear a hot water tap running I’ll just check it. Ah it’s ok. Right, so we’re a self help group of people with obsessive compulsive disorder (ocd) who want to help each other through the… oh wait a minute… Christ! I’ve left the iron on! No I haven’t! Yes I have!

Ok, if you’ve come to this site via the usual route, you’ll be wondering what the heck is going on.

Basically we were sat watching a trailer for the very funny Catherine Tate Show and she made a gag about obsessives who should log on to http://www.christivelefttheironon.co.uk/noihavent/yesihave

And well, James and I were wondering if the domain had been registered. The computer was just there you know…so we had no choice but to check – and it was available! We couldn’t resist and, for the princely sum of a fiver, we had a shiny new domain!

Then, erm, what were we going to do with it?! And I realised, it shouldn’t be difficult to record the entry url – I’d simply redirect the domain to this post here that you’re reading now, and see what happens.

So – here’s the gig. Suggest how many people are sad enough to log on to a domain they’ve heard on the TV. After the show has aired (anyone know when it will be?) I will reveal the web stats to all. There may even be a prize in it – I dunno, a souvenir or something. Maybe it could be like when I listened to Radio Kiev on my shortwave radio as a kid and got excited by their offer of a “selection of Kiev souvenirs” for anyone who reported their signal strength.

No bets are being taken on how many people are sad enough to actually register a domain they’ve heard on the TV – that’s just two. James and Me.

If you’re a really big fan of the lovely Catherine Tate, just click here to see a big list of DVDs, books and related items from Amazon.co.uk

PS. I wanted to add the links to the official site and to some products not just because I’m shamelessly commercial, but as a way of thanking Catherine Tate for all the traffic I might get. Not that I’m sure there’ll be much traffic, but let’s see….

PPS. The show returns to our screens on BBC 2 at 9pm on Thursday 26th October! Watch it and wait for the url. Perhaps we could also bet when it’s used in the show? Any takers?

PPPS. Added July 2014: This page has been consistently popular on my site and is always about the second most popular each month. For eight years! Well done all. And here’s the actual clip (may disappear):

On a more serious note, be aware that the real OCD UK web site can be found here by clicking on this line.

I’m guessing a series of ads on BBC1 has just caused all these comments – it’s taking on a life of it’s own! Anyway, to give you a clue, tonight alone (Monday 16th October 2006) there have been some 170 people almost, but not quite, as sad as me! Keep on coming – it’s fun to be sad :o)