It is commonly accepted that Y2K was not a major issue _because_ people worked so hard on it ahead of time.
By analogy, something can be said to have been a Y2K when huge efforts are spent, but no crisis occurs.
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The hard part is knowing when you prevented a crisis, and when you just wasted your time.
You only get to see one timeline, which makes this hard.
@WomanCorn Well, the people who spend a lot of money on Y2K are definitely not going to say it was for nothing. And neither will the ones who received it.