Assuming I’m snapped back to the same part of the earth, climate-wise that’s ideal in the US PNW coming out of spring. Plenty of berries and food to forage, and I’ll probably impress the natives with my watch and well made clothes. I can probably get the native tribes to metals, and gain acceptance with my magic hand tool that will briefly shine light at night for a few weeks. I don’t know offhand where copper would be, but I know gold is in the streams, and I know how to placer mine, so I can get some electricity going with that and magnetized rocks from lava flows.

I think first contact would be the key.

Fly under the radar as much as possible, find a cute girl and settle down and have a lot of kids.

I'd be fucked. I'm not succeeding in the present, I see 0 reason to believe that would be different in 1375.

Start a cult.

Everything I've seen for the last decade indicates it's pretty easy and highly profitable.

First I would seek the attention of the local ruler by cooking interesting dishes with modern knowledge.

Then I would ask him to create an akademy. I don't know the details but I know what can be known. Intelligent people will reinvent the knowledge.

Some side businesses should make enough money that the akademy and thus further development doesn't entirely rely on the king.

Build cities with public transport and no cars, because there is no car.

Success.

The Ring of Fire series which is about this concept was such an amazing read. Unfortunately the infinite branching plotlines became way more than I could handle.

Well, I'm in America, so...

I guess I'd prep the natives to help put up a proper fight. Find a way to teach them that white people (like myself) carry diseases and to stay away and keep them away. If they land on your shores, drive them back. Never let them get a foothold. I'd try to convince them that I was a demon that got away from the other demons to warn of our coming.

I'd do my best to make it so nobody remembered the name Christopher Columbus except as the idiot that died because he thought the world was much smaller than it is and never returned from his voyage.

What place do I get teleported to? If I'm teleported to the same place on Earth, then I just fell down several meters into a swamp and am probably going to die here.

Good thing I binge isekai anime

I would basically become a Jewish witch and either build a small community of people or die of some ancient plague, either way I wouldn't be thriving but I might just survive.

Do my best to warn the locals of the coming invasion. Learn their language and teach them English and tell them not to trust any group of strangers who speak it.

Help improve their technology as best I can. I’m not sure how much I’d be able to improve it. At least, teach them to wear masks and wash their hands when around sick people.

Probably die of gangrene after stubbing my toe or something else stupid. Prior to modern medicine, diseases and things we think of as mild were often deadly.

I'd cry, curse god's name even more than I do currently, and then probably die from boredom.

1375? Bro that's the. Middle ages. Fucking kill me.

Depends what clothes I'm wearing when it happens.

If I'm wearing anything that could remotely be seen as fancy back then (which I mean a lot of modern clothes could pass off as), since I'm near the ocean, I'd immediately run into the water not seeing anyone, and then pretend I'm a royal foreigner who ended up shipwrecked. Since I usually wear a watch, have a tungsten (Wolfram) crystal wedding band as well, that would help me in passing off as royalty as well. This is assuming the people helping me aren't brigands. There's things we do and know of that we take for granted that could be used to pass off as someone upper class too, like reading.

Then next steps would be to get to an aristocrats home, and eventually I'd imagine somewhere where I could work with scholars so they can teach me the language and we can work on translation so we can understand each other. Would have to be extremely careful of smallpox during all this of course.

Once we could, that's when I'd finally whip out my phone to trusted scholars and pull up my survival books, books on plumbing, etc specifically, and to explain that this is a special metal and glass book that can hold many books that's common in the land I'm from, and that I can teach them how to build them. But that we'd need to build plumbing because I'd like a shower by then.

Anyone else a fan of Nate Bargatze?

Well I be naked, so would need to make/steal clothing very quickly