I’ve always thought “man it would have been a great job selling shovels and pickaxes during the gold rush” back in the day.”
I know, I know, it’s really hard having these insights. We all have our crosses to bear. <giggling emoji>
The "picks and shovels" people from the dotcom days all went broke. The stuff they had convinced themselves and their investors was crucial turned out to be not important.
Even the original gold rush pickaxe guy Sam Brannan went broke, and he practically had a monopoly on pickaxes by buying up the entire supply: https://en.wikipedia.org/wiki/Samuel_Brannan