Asklemmy

Cavernbook: a cavern where everyone chisel his/her photo and his/her thoughts

I would introduce them to scrumpy, then teach them to grow apples so we can make more.

Butchering, I live on a farm and butcher sheep/lamb and chicken is second nature to me ( started when I was 12 )

Foraging for plants.

Probably dying at age <1.

Ironically, brute force. I would be great at hunting too!

I can make soap from fats and lye (from wood ash). Getting the right balance of fats/lye would be tricky; I've never used wood ash so I'd need some time to work out the right formula. But, theoretically, I could make handmade soap for everyone.

tool making most likely. also fire keeping, and cooking.

Everyone alive right now must have ancestors who very literally did live & survive though the stone age and the ages before and after that. Wish I knew what my ancestors did to survive stone age, or better still if I could like watch them in a time lapse video. I guess I might have run away from stone lifting to go be a shepherd or something.

Cave wall art. Carving trinkets and talismans. Might branch out into making spear tips, arrowheads, axes, stuff like that.

Knapping.

Wait, I mean napping.

Absolutely nothing lol. I do tech support for a living and work on cars as a hobby.

Reaching things on top of the fridge would be my special skill. I hope they'd create a special government position just for people like me.

Being that person providing a better method halfway through a process. A cave person standing on top of another to cave art the ceiling? Halfway through I go "...You know you coulda just grabbed the log from outside, leaned it against the wall and climbed it". Someone halfway through whittling a bowl? "Oh, yeah, I saw some coconuts on the beach they'd be perfect".

I have the great hobby of Looking At Random Things, but the bad habit of assuming everyone else saw those things too so they must be doing what they're doing for a reason lol. That all said I'm sure I'd be dead from dysentery within a week or smtg, they wouldn't have to suffer me long.

Coal mining, I fucking love mining coal

If I had my current knowledge, low-level iron forging, agriculture, and architecture (cisterns, wells, deep food storage) and very rudimentary medicine because the wife is obsessed with various herbs that are used to make our modern medicine

If I was starting from scratch, probably just be decent at hunting because I have good hand eye coordination and maybe tracking

Criticizing people about their hair styles

Dying from a decease.

hoardlng stones

Hitting people with a cudgel

Protecting the womenfolk while the other menfolk are out hunting

Juggling. I'd find some nice stones or pinecones and teach everyone how to juggle and do some tricks. I also know an ancient game you can play with stones or knuckle bones. And I know some songs. And stories. People in the stone age had lots of free time to pass, so all of these would come in handy.