More like I'll invest time learning a tool relative to the potential payoff. Right now this tool would be of minimal utility. The vast majority of code I write isn't "make this isolated algorithm more efficient", it's "implement/integrate this new feature into the server cluster". Without deep understanding of the software/server architecture and the ability to derive potential tradeoffs of different approaches, my job cannot be done.

This "if you wait to see results the opportunity will be gone!" mentality is for VCs and other people who's business models require them to be way out on the risk curve, who make a lot of bad calls, but lose relatively little when they fail. It was also partially a product of low interest rates. It is not applicable to most individuals/organizations.

I use it as an instant StackOverflow for the most part to get around new libraries or libraries/languages I don't use that often. Also generating custom bash one liners or small scripts. It is priceless for this use case. Yeah, sometimes it is wrong, but in my exp. less than 5%. Also we are lucky that for our purposes we can almost always validate the answer almost instantly and without incurring any cost.