From game I get instant gratification as if I play by the game guide/rules I can have something satisfying built in one evening.
however, this is the trap i always fall into - i have these vague targets like "learn vue" and spend the whole weekend trying to figure out how to install node on a windows machine and run a basic test
Personally I have a list of things to learn that could easily take several lifetimes.
e.g: making bluetooth 10% more energy efficient in the next few revisions
In fact there are probably infinitely many.
If you just walk up to the mailing list with the complete designs, documents, experimental results, schematics, trade offs, feasibility studies, you know what you're going to get? People saying "whoa, hey, great work but let's talk about this. I see here you've made assumption X about implementation area Y and that actually conflicts with the direction that we had in mind for the upcoming release, so let's talk more. To start, we'd like to see if we can explore option Z, thoughts?"
That ain't fun. It's rewarding but it ain't fun. Not like sitting down and messing with Legos in your own house is fun, or building a silly factory in Factorio is fun.
I know a person who 2x'ed BTLE transfer speeds by herself by coming up with a new protocol to talk to iPhones w/o the need for one of Apple's security chips.
Sufficient brainpower can do amazing things.
Nobody is going to believe anyone short of that bar would have even fully understood the bluetooth specification. So even a regular genius, 99.9th percentile HN user, would have a starting credibility of roughly zero.
But there are likely infinitely many waiting for that 99.9999th percentile HN reader to come along.