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Was Y2K a real genuine threat to human existence that was averted by the blood sweat and tears of IT departments across the globe?

125 replies

OneMentalBastard · 20/09/2026 21:24

Or was it never going to be that big a deal but they all got paid loads of money for resetting computer clocks anyway?

Just curious, in light of these doomy messages about AI. Which, again, is something that only IT departments can save humanity from.

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PrizedPickledPopcorn · 20/09/2026 22:07

@nomas the first use of the atom bomb, where it was unpredictable, like AI is now.
Where they didn’t know what the result of the technology was going to be.
Not the later uses where they knowingly chose to kill two cities’ worth of civilians.

Still you are clearly heavily invested claiming to be right. I’ll leave you to it.

PrizedPickledPopcorn · 20/09/2026 22:10

There’s a saying, isn’t there? Feel the fear and do it anyway!

CherryKerry · 20/09/2026 22:11

It did cause major system issues, e.g one of our systems just stopped running. (Public Library). The coding couldn't accept the date not starting 19xx and it was too embedded to change.

We knew that was going to happen though and our new system effectively went live as the bells chimed.

No one really thought the world would end, that was just the usual suspects in the media, some things never change.

SpottyAlpaca · 20/09/2026 22:12

I remember it well. The so-called ‘Y2k bug’ was a massive marketing hype by the IT industry of the day. It successfully created media hysteria amplified by technologically Illiterate journalists. It spooked corporations & governments into spending millions on consultants & new equipment. Countries & organisations which either ignored the hype or didn’t have the resources to throw money at the supposed problem were able to carry on business as usual in January 2020.

In fairness, it was a completely different world back in 1999. We were alll still adapting to the daily use of computers, the internet was in its infancy, so you couldn’t Google anything, books on computers were written in incomprehensible jargon & most of us were just muddling through as best we could. Senior decision makers in their 40s & 50s, in particular, were trying to make sense of a new world which they didn’t group up in & didn’t understand.

I’m not suggesting that today’s AI hype is exactly the same, but it certainly has very familiar echoes of Y2K for those of us with a few grey hairs…

corlan · 20/09/2026 22:13

I was a programmer at that time and the millennium bug didn't pose a threat to human existence as far as we knew. The offending code was generally easy to find and easy (if boring!) to fix.
AI is on a completely different scale.I don't pretend to understand it but you just cant compare it's capability to the milennium bug. Ironically, I'm sure if AI had been around back then it could have gone through every computer system's programs and fixed the bug in a couple of hours .

Svalberg · 20/09/2026 22:14

@PrizedPickledPopcorn

Might have turned off the lights at a salad factory.

I made sure the lights didn't turn off in a biscuit factory - does that count? 😄

nomas · 20/09/2026 22:14

PrizedPickledPopcorn · 20/09/2026 22:07

@nomas the first use of the atom bomb, where it was unpredictable, like AI is now.
Where they didn’t know what the result of the technology was going to be.
Not the later uses where they knowingly chose to kill two cities’ worth of civilians.

Still you are clearly heavily invested claiming to be right. I’ll leave you to it.

You’ve clarified that you meant Trinity, so it’s not about being right or wrong, just a miscommunication .

I think they knew what destruction it would bring. Many people died in developing the bomb and there is that Oppenheimer quote ‘Now I am become Death, the destroyer of worlds" on the day of the test.

merryhouse · 20/09/2026 22:23

Yes.

HTH

HAND

(DYOH)

merryhouse · 20/09/2026 22:25

Incidentally, I remember a post

"Remember when Y2K was going to be the end of the world? Planes falling out of the sky and so on? Clearly, 2001 was the real millennium..."

(too soon? IGMC)

OneMentalBastard · 20/09/2026 22:31

SpacesNotTabs · 20/09/2026 21:39

Yes, we did put a lot of effort in to make sure that we'd fixed everything in time, there were a couple of things that went wrong in the wider industry, but it's so long ago, I've forgotten what!

I do know that my engineer colleagues who'd been made redundant when Thames TV lost their franchise in 1992 got a good lot of work visiting people's homes to patch their video recorders.

Interesting. Video machines, you say? Not Heathrow flight path software then.

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OneMentalBastard · 20/09/2026 22:35

corlan · 20/09/2026 22:13

I was a programmer at that time and the millennium bug didn't pose a threat to human existence as far as we knew. The offending code was generally easy to find and easy (if boring!) to fix.
AI is on a completely different scale.I don't pretend to understand it but you just cant compare it's capability to the milennium bug. Ironically, I'm sure if AI had been around back then it could have gone through every computer system's programs and fixed the bug in a couple of hours .

Hang on, if it was so simple why did we have years and years of people telling us all the planes would fall out of the sky, open heart surgeries would end midway, food wouldn't get delivered, power would go out globally and water would be cut off everywhere, gradually across the globe, as the clock ticked onto 2000? It sure as shit didn't sound simple at the time. As I recall some people got paid a lot of money for saving the planet, back then. Why would they get lots of money for a simple fix?

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SpacesNotTabs · 20/09/2026 22:35

OneMentalBastard · 20/09/2026 22:31

Interesting. Video machines, you say? Not Heathrow flight path software then.

That will all have had to have been checked and fixed, if necessary. Everything did - one of my first software jobs after university was learning Fortran and checking code that was used in supporting national infrastructure, not aviation, but adjacent to.

HowardTJMoon · 20/09/2026 22:36

OneMentalBastard · 20/09/2026 22:31

Interesting. Video machines, you say? Not Heathrow flight path software then.

You do know that there could have been some people checking video recorders while some other people were fixing air traffic control, right? And other people checking the SCADA systems running the gas pipelines, and others fixing the hardware and software that ran payroll, and other people making sure that the routers that held the internet together would still work (that was me! Among many others) It wasn't that there was just one person running around fixing everything and so if they fixed a VCR they wouldn't get around to checking the navigation system in an airliner.

OneMentalBastard · 20/09/2026 22:38

SpacesNotTabs · 20/09/2026 22:35

That will all have had to have been checked and fixed, if necessary. Everything did - one of my first software jobs after university was learning Fortran and checking code that was used in supporting national infrastructure, not aviation, but adjacent to.

So you know the people who stopped the planes crashing? Because - and this is wild - absolutely none of them did. Years and years we'd been told it would happen, and then it didn't.

Those plane IT people must have worked ever so hard.

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OneMentalBastard · 20/09/2026 22:39

HowardTJMoon · 20/09/2026 22:36

You do know that there could have been some people checking video recorders while some other people were fixing air traffic control, right? And other people checking the SCADA systems running the gas pipelines, and others fixing the hardware and software that ran payroll, and other people making sure that the routers that held the internet together would still work (that was me! Among many others) It wasn't that there was just one person running around fixing everything and so if they fixed a VCR they wouldn't get around to checking the navigation system in an airliner.

And they all did that in the nick of time, around the world, in war zones and other places with intermittent power etc. well glory be.

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HowardTJMoon · 20/09/2026 22:39

OneMentalBastard · 20/09/2026 22:35

Hang on, if it was so simple why did we have years and years of people telling us all the planes would fall out of the sky, open heart surgeries would end midway, food wouldn't get delivered, power would go out globally and water would be cut off everywhere, gradually across the globe, as the clock ticked onto 2000? It sure as shit didn't sound simple at the time. As I recall some people got paid a lot of money for saving the planet, back then. Why would they get lots of money for a simple fix?

Because there were tens of thousands of different hardware platforms, hundreds of thousands of bits of software, and millions of potential interactions between them all that needed to be checked. Each individual check might not have been that difficult, although some of them definitely were. There were a lot of systems that couldn't realistically be fixed and so had to be replaced entirely. The sheer scale of the problem made it harder.

HowardTJMoon · 20/09/2026 22:39

OneMentalBastard · 20/09/2026 22:39

And they all did that in the nick of time, around the world, in war zones and other places with intermittent power etc. well glory be.

Yes, we did. You're welcome.

OneMentalBastard · 20/09/2026 22:42

legalalien · 20/09/2026 21:43

It was real at its core but certainly the case that lawyers, consultants and so forth added to the hype/ hysteria and made a fair bit of money off the back of it. In Australia/NZ we were very cognisant of the damage the leap year bug had caused at Comalco. I spent NYE in the company of a bunch of IT lawyers who weren’t allowed to drink until after midnight and who had been issued with emergency pagers from memory. Not quite sure what they were supposed to do if anything went wrong but I guess it was possible clients might call for advice!

But they didn't get any calls, right?

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OneMentalBastard · 20/09/2026 22:43

HowardTJMoon · 20/09/2026 22:39

Yes, we did. You're welcome.

It certainly sounds ... fantastic.

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NotAnotherScarf · 20/09/2026 22:44

No it was a lot of clever it bods realising that they wouldn't get made redundant if they invented a fear for their company and like the best urban myths it spread and everyone (well almost everyone) believed it.

HowardTJMoon · 20/09/2026 22:47

OneMentalBastard · 20/09/2026 22:43

It certainly sounds ... fantastic.

Your posts on this thread certainly sound... like the Dunning-Kruger effect in action.

HowardTJMoon · 20/09/2026 22:47

NotAnotherScarf · 20/09/2026 22:44

No it was a lot of clever it bods realising that they wouldn't get made redundant if they invented a fear for their company and like the best urban myths it spread and everyone (well almost everyone) believed it.

Which area of IT did you work in in the 90s?

OneMentalBastard · 20/09/2026 22:49

NotAnotherScarf · 20/09/2026 22:44

No it was a lot of clever it bods realising that they wouldn't get made redundant if they invented a fear for their company and like the best urban myths it spread and everyone (well almost everyone) believed it.

Certainly seems that way.

What's incredible is that they still expect us all to believe it.

IT departments can't even now coordinate communication between from eg Didcot and Gravesend. But apparently 26 years ago they pooled resources between themselves from Antarctica to Oklahoma, from Yekaterinburg to Abu Dhabi, and pulled humanity back from the brink, resetting video machines.

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socialdilemmawhattodo · 20/09/2026 22:53

Kidsandhouse · 20/09/2026 21:54

This. I also know from experience

Me too. We worked hard, really long hours. The fact nothing major happened was NOT luck.

SilenceInside · 20/09/2026 22:57

@OneMentalBastard few people in IT would have thought that humanity was on the brink of destruction. It was a known issue, it was fixed, there was a time limit for when fixes needed to be done due to the nature of the issue.

The actual bug was very straightforward to understand. The fixes could be more complex depending on the exact systems (hardware, software) used. Some might need completely replacing as they were too old to fix, some could be rewritten which varied from simple to complex. I don't know what about that seems unbelievable? It seems like a very bog standard IT process to me, as an IT professional. The only difference was that it was widespread and not limited to a specific system(s) like many bugs are.

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