Regarding Cathie Wood, she was aggressive buying  and holding and with strong conviction during the wave - she rode the wave basically - and because of that everyone considered her a genius.  But in reality it was more about her having strong conviction that happened to align with the 'wave' that was happening at the time.

this happens a lot on Wallstreet - when someone get hot because they got lucky and also were also super aggressive with their holdings at the right time with strong conviction that produced strong returns for that time period - the whiz kids etc. Again, people can get 'hot' for a while, but key is, being consistent and willing to adapt and most are not - they are hot for a time or that time where their conviction was synergistic with the market trend at the time - but if they do not adapt their strategy when things change - then they were not some whiz kid wall street genius - they were in the right place at the right time, they rode the wave and their aggressive style synced with the market during that time