I was in college in 2002, so I would go there and tell myself what is going on. That shouldn't break the rules since nobody but me would know what was happening (just a different version of me). Working together with a blueprint of the next two decades, it would be trivial for college me to make money in the stock market. I would raise as much money as I could before the 2008 housing bubble bursts so I could buy up a lot of property cheap.

From there I could use the information on close elections to politically swing things the way I want. 20 year old me would practice writing so I could get into writing newspaper editorials, building my reputation as someone who has exceptional ability to predict political and social trends. This reputation would give me a foothold to get to speak to and advise people in power, further allowing me to shape the direction of politics. With this money and influence, I could make sure COVID was handled properly, that the war in Ukraine never happened, and that climate change was addressed with the seriousness it deserves. I could save hundreds of millions of lives and nobody would ever know.

I'd go befriend my brother. I like that dude.

Play Metroid Prime on my GameCube again.

The billionaire one is kinda easy

Sports betting to get your base funds up to a decent level then buy the shares in the successful tech companies post dot-com crash. Wouldn't hurt to buy some gold and bitcoin too.

Sports betting would continue helping you live a lavish lifestyle until all the investment income gets to a good level.

If you do well enough, you should be able to amplify what you've already made to acquire an absurd amount of wealth on the subprime mortgage crash in 2008.

2002? Damn, too late to warn everyone about 9/11.

I can think of a few things I do not like about the world today that I imagine I could improve in a scenario like that. They include:

• Much of the world's communication is mediated through centralized social media platforms that use opaque algorithms to determine what content people see. (Yes, this is a very Lemming concern)
• There is a significant rise in (mostly) right-wing populism worldwide, driven, I think in part by the above.
• Corporations and governments are increasingly able (and motivated) to block access to their digital systems from general-purpose computers that their owners fully control. Even the mainstream press saw Microsoft Palladium as a nightmarish power grab in 2002, but did not react the same way to Google SafetyNet in 2014.
• I do not own a Gordan Murray Automotive T.50.

Social media

2002 is before anybody had a convincing lead in this field, but blogs were already popular, and on the Internet, nobody knows you're a ~~dog~~ kid. I could start planting the seeds of more advanced federation capabilities through open source development right away. I'm assuming I have a computer of course, but I think even if I didn't I could probably get my hands on something older just by expressing interest and aptitude.

After laying the technical foundations and establishing some credibility as a developer and technologist, my goal would be to build something with significant mainstream appeal by the time Facebook opens to the public in late 2006. I'd need access to money at that point, whether my own or through investors, though as a federated system, I wouldn't have to bear all of the costs (nor would I have the ability to extract all the profits, but even a hundredth of Zuck's net worth is obscenely wealthy).

Populism

I honestly do not know how much of this is due to the present day social media environment, but I'm sure it's a significant factor. I like to think that by tuning the design of social communication tools for more thoughtful discussion, more thoughtful leaders would thrive. Barring that, if I was obscenely wealthy, I could put my thumb on the scale by less honorable means, and I like to think I wouldn't be so terribly corrupted by the money and power as to use it for evil.

One idea that comes to mind for political discussion is used in Pol.is and (perhaps ineffectively) Twitter community notes: surface points where people who usually disagree are in agreement.

Protecting general purpose computing

This one is hard to the point I'm not sure it's achievable, but It's so important. The obvious approach is to launch a mobile operating system, which would have to at least stay even with Android. Microsoft tried this in 2012, and that was too late despite their entry attracting some diehard fans. If I have the superior OS and majority market share, I'm in a good position to resist attempts to mandate locked bootloaders and remote attestation.

The good news is it's not hard to do a better job with some fundamental design decisions given perfect hindsight, and with Android being open source, it wouldn't be hard to support Android apps. There weren't a lot of dependencies on Google's services in the early days.

This one would be reliant on the social media play for capital and credibility. It would need to be well underway by 2010, which is a tight timeline, but not impossible.

An absurdly expensive sports car

If either of the above plays works even moderately well, I can have my 11,500 RPM redline V12 three-seater. If not, I'd still be in a position to make a bunch of money, and I'd be trying some of them in parallel.

Nobody's going to give a ten year old control of an investment account just because they say they have some good ideas about the stock market, but if my hypothetical parents are anything like my real ones, after a couple months of demonstrating nearly-unbelievable skill at investing fake money, I'd be able to talk them into letting me invest a couple hundred dollars of real money and snowball things from there. I'd also know which startup ideas worked, what decisions were important in their success, and which founders I wouldn't feel bad about ripping off.

Even as reality diverges, I think certain trends were inevitable. Social media will happen. Smartphones will happen. Streaming will happen. EVs will happen. Generative AI will probably happen, but I think I might try to push that one back a few years if I was in a position to do so. Flying cars, fusion power, and space colonies probably aren't happening by 2025 regardless of how many butterflies flap their wings.

Well, my immediate problem is the general lack of memory and personality change (can't really rely on a 10 year old's diary.) So... I'm probably going to need some sort of convincing injury to blame.

After that is the hard choice. I could toss the USB and just live. But the nature of the situation suggests I'm supposed to do something. At minimum I'd want the means to investigate the scenario. Running away has merits, but this sounds like a safe, stable situation, and it seems wrong to abandon the family this kid belonged to.

I'll need a side hustle that works for a 10 year old... maybe trading cards or something along those lines. The money does not matter as much as the hustle and laying the ground work for an early interest in business and money making schemes. After that, retail arbitrage, then a bigger payout. Cashing in a big prize for a discovery or winning the lottery would draw too much attention, but sports betting could work. Then use that to move into financial markets. Moving slowly but setting things up to ramp gains by 18. I know that misses the goal, but doing it earlier depends entirely on the family situation. 20 is probably more doable.

Realize I'm somehow older than I actually would have been, would be the first thing I do. Next is do the best I can to act like a 10 year old and not cry over the fact I'm back in 4th grade again.

Though, knowing me, I'd absolutely get caught if I'm still mentally the same person I am now. I mean, if I inhabited the body of an extrovert, I'd be doomed because the parents would go from seeing their extroverted kid become immediately introverted yet unable to care what others think of him/herself. They'd see their child suddenly become a radically different person.

Also, ain't no way I'd be able to make it through a few days before getting caught because I guarantee I'd be suspicious because my way of speech would absolutely slip through. There ain't no way a 10 year old child would be spouting things like Chinese swears like NMSL or speaking Japanese words or short phrases or getting away with swearing, which if I'm still mentally me, would most likely if my internal filter comes with me on this nightmare.

And don't even get me started on my movements when I'm at home. I don't always walk like a normal person when I move and I'm pretty sure that's the autism and not being corrected by my parents.

All y'all just want to be rich. Pathetic.