I mean a big part of a -growth- CEOs literal job is to guess on what the future holds and effectively bet on it. Big-co CEOs are naturally expected to share th

I mean a big part of a -growth- CEOs literal job is to guess on what the future holds and effectively bet on it. Big-co CEOs are naturally expected to share their bets - and they aren't going to couch it with a "oh well no one could know for sure but..", that would totally undermine their existence! On top of that; sometimes just saying a thing can make it happen. So it's never not worth that shot... This has always been true. Your selecting a group of people (CEOs and VCs) who have always made and lost money on confidently predicting the future. See also wall street bankers and politicians. There are winners and losers in any boom - this happened in Cloud, DotCom, computing and hell probably tractors, industrial revolution, etc