I think part of it depends on what you call "personally saw". I've been here 4 years, and I can name a lot of people that were let go. But it's a biggish compan

I think part of it depends on what you call "personally saw". I've been here 4 years, and I can name a lot of people that were let go. But it's a biggish company and there are just lots of people you know "of" without really working with that closely. In Silicon Valley 4 years is about how long it usually takes for complete turnover at a company, when you look around and there's nobody left that was there when you started. It's nothing like that for me, though, I'd say about half the people I interact with typically have been around about as long or longer than I have.