true story: I give out a problem to code up a cache with some specific requirements. I've written this thing up in several languages, I've given this particular

true story: I give out a problem to code up a cache with some specific requirements. I've written this thing up in several languages, I've given this particular interview problem to maybe a hundred or more people. I know this problem. I got asked this problem and my mind went completely blank and I had to solve it from first principals, making some of the same blunders I see others making when I work with them through it. When I see people claim that senior devs can't FizzBuzz, I have to imagine what they mean is that they do some silly error because they are under pressure and you have to remind them about "what about 15?" or something. I've interviewed hundreds of developers and only two had trouble implementing a loop and conditionals as a concept.