There's lots of stories about "I had $1k in bitcoin/Nvidia and it'd be worth millions if I had held." What longshot investments do you have right now and why did you pick them?

Stuff that may not necessarily blow up this year or the next but you threw some money at just in case it becomes something someday. Why did you pick it?

Obligatory disclaimer - All my serious money is in diversified indexes and my strategy will stay that way.