If your parents didn't meet and make you, then it is likely they would have met other people and made other people. Don't put the curse of your existence off on some other poor sap. Stand up and drink your cup.
Assuming I could go back at some point, ancient Rome in its heyday would be a sight to see. I'd love to go sightseeing to almost any ancient civilization really. At least the ones where I wouldn't immediately get killed.
I guess I was thinking about civilizations that practiced human sacrifice (e.g. in Mesoamerica) and generally civilizations where outsiders were not welcome (e.g. Edo-era Japan).
Assuming it's a one way trip, I'd probably go to the year 1998, Impersonate my dad, Rescue child me from some shit, Win the lottery, Stop 9/11, and then die and leave my younger self with more money and power than he could reasonably cope with.
Congratulations, you stopped the 9/11, but the terrorists escape and they plan for something even worse:
9/11 v2002: Nuclear Boogaloo?
Global UN Patriot Act on Steroids?
There would be a genocide of Muslins in the US, and perhaps Islamaphobic violence towards people who look "Middle-Eastern" all around the world. Aircraft having an emergency and deviating from flight plan with broken radios? It will get shot down immediately. MH17-like incidents will be commonplace around the world.
Bring books on crossbow manufacturing. It's documented that Chichimeca obsidian tipped arrows could pierce through chainmail. Most areas practicing agriculture in the Americas will either have or have access to raw materials required for the manufacturing of crossbows.
To the middle of the carboniferous to check if it is true the hypothesis of the delayed fungal evolution. Forests growing for millions of years and wood not decaying? The mountains of dead trees is something I want to see.
Are are we applying butterfly effect mechanics here? If yes, the farthest I’ll probably go is the previous 24 hours to have the least impact on the things I don’t want to lose/change. Then I’ll probably bet on the lottery.
This timeline is already fucked so I really can't make it any worse, so I'd go back just to fuck with the timeline.
Take written volumes on mathmatics, science, and engineering and hand them out in Greece and Arabia a few thousand years ago and see what kind of world we end up with instead.
This. The modern mathematical symbols, at least in their current use, are no older than 550 years. Heck, the numerals we use are about as old as that. The Arabic world had a head start with early versions of those numerals, but even then, those are only twice as old as the oldest mathematical symbols still in use.
Prior to that, people wrote things out in words, or, as you suggest, invented their own symbologies and shorthands.
I have a book around here somewhere that shows how Diophantus wrote a particular polynomial equation and it's all Greek letters, some with macrons (overlines), some superscripts that don't mean what we'd use superscripts to mean, and one large upturned capital psi in the middle of it. Mind-boggling.
And they'd be more mystified by our notation than we are by theirs because at least we (or some of us) know what Greek letters and numerals are. They'd have no such head start.
Go back to 1 minute before they posted that and post it before they do.
I am now the person who posted the highest upvoted meme ever!
The Original OP in the original timeline would be so confused while I stand in the spotlight of GLORY! 😎
Also:
I ask c/asklemmy questions in which the OP didn't answer their own question, right before they conceive the idea of asking that question, in order to see if they would answer their question that they originally posted in the original timeline to what they would answer. Basically use jedi-timetravel tricks to make people ask themselves questions from a different timeline.
Register a domain of a popular sites before they get registered
When a post is crossposted, the term OOP is used instead (Original Original Poster), as opposed to the OP of the crosspost.
Its used in r/SubredditDrama or r/BestOfLegalAdvice where the OP would say "I'm not OOP", in order to to reminds commeters to not direct their rage against OP.
In this context, OOP refers to the user who originally posted it on the original timeline.
I could think of a few historic figures I would love to see be smothered in their cradle, but I think of it's a one way trip, I'm going to get PDFs with just about everything I would ever need to know about programming in older versions of various languages, burn them to CDs, then return to the early 90s.
My hope would be, assuming I could take the CDs with me, that I could spend time becoming someone known specifically for making good quality software that helps people. Then when people on windows get attached to that software, pull the rig by saying that, maybe around the late 2000s, all my software will now be only available on Linux. I'd hope to create such high quality software, with the help of any other lunatics I could find, that nobody else can compete. A sort of VLC is the best, or at the very least probably the most used, video player around the world sort of software. Get entrenched and then force a shakeup.
Bonus points on me bringing proof I'm from the future, if I could, to ensure I could get people to believe me. Something like my soft modded 3DS. Also, bonus points if I bring CDs with PDFs for future versions of things like Python and other languages and such so we could stay ahead of the curb.
Some real techno elitist type stuff if I had to say so myself.
If I was guaranteed to end up back where I am now in my life then I'd go back to my early 20s and head off my drinking.
I put my friends and family especially through a lot and I'd undo that if I could, but not at the expense of all the positives in my life since I've been sober.