What other trains have left the station? What ones are leaving now? I'm referring to growth areas that are not 'winner takes all' and do not require extreme ability/talent to get into. The ones that come to mind are:
- smart phone apps when the iPhone first launched
- crypto currency mining/speculation (still ongoing I suppose)
- maybe some period 2005-2015 when there were still many novel and lucrative applications of machine learning to try out?