Post your rabbit hole story’s.

[NTP2]

I will start,
When I was 12 I needed money and so instead of mowing a yard like a normal kid,I designed a fuser to make neutrons to turn mercury in to gold.
See https://fusor.net/
Edit If I had built it I would have set a world record for youngest person to do it.

 

[Cl(VII)]

At the end of 2019/start of 2020 I decided I needed to get a grip on my health. I'm now down about 80 lbs since then, and currently ride my bikes 200 mi a week, run 40 mi a week and I qualified for (and completed) the 2023 Ironman World Championship.

I have an obsessive personality, all the way down is the only choice when I come to a rabbit hole.

 

[dhbarr]

I was wondering about bullet shapes once, ca. 2015:
ballistic coefficients --> transsonic performance --> nosecone shapes --> rocketry forum --> game over

 

[dr wogz]

I just started digging...


then the mushrooms kicked in..