Provide food, housing, clothing, and other essentials to the people for free. Help them set up their own system of mutual support and solidarity. Make money irrelevant.

I would divest the world from fossil fuels, fund carbon capture. Build housing and mass transit like mad. Feed everyone who needs it, make education and healthcare human rights.

Basically star trek.

Lots of bad things to lots of bad people. To quote the Count of Monte Cristo: "I will surely use it for revenge."

If money were no object, I would build a reusable-glass network and force Walmart, Target, Kohl's, etc. to start a global glass shipping program to take customer-returned glass products (like after you use up all the vinegar, mayonnaise, etc. in your glass jars, etc.) and get them back into the production factories for reuse. All containers would follow standardized sizes (several dozen classifications) to make reuse easy.

Two chicks at the same time. I figure I could make that happen if I had infinite dollars.

Oh, multiple assassinations.

I would spend billions of dollars ensuring that Trump dies poor and homeless.

I would start many companies and organizations based on open source business models developing various software and computer networking technology. The goal for each would be to become self-sustaining (paying employees appropriately but not necessarily attempting to generate profit), and with an objective of creating a unified suite of system administration tools that is equivalent to Microsoft's Active Directory - but 100% open source and interoperable rather than proprietary.

Absolutely none of the developed software would include or support any of the kind of surveillance-state functions that are part of the current trend of collecting data on users for "AI". If possible, technical methods for preventing any such data collection on users would be developed and implemented in every single project.

Overall the goal would be to out-compete every other computer networking product on the market in terms of convenience, stability and affordability - creating a complete set of best-in-class systems which act as a bulwark against any privacy-invading AI-enabled surveillance software.

*Edit: also some advocacy organizations like the ACLU and EFF with the same overall goal of reducing the global presence of surveillance-state garbage. Basically the antithesis of anything Peter Thiel is trying to do.

funding open source projects and buying ip and freeing it.

Worldwide free schools, free Healthcare, free shelters and free educations for all who need it

Build a time machine to travel back to the right moment in time to beat the shit out of people who grow up to be scumbags because they never got the shit beat out of them.

Everyone already said the humanitarian ones. I'd live in an off-grid, self-sustaining chalet in a remote mountain location with a wood shop, nice garage for project cars, and high speed internet.

I'd start a gay gym with pool, spa, sauna, bar etc. I'm talking about the kind of place where you will see obscenities.

EDIT: These threads always make me lose my faith with humanity as I read people share their violent and sadistic fantasies.

Create an energy efficient system for carbon capture from the atmosphere and the oceans. Something that can be used at the sites for heavy emitters and also generally around the world.

Create a system to collect the captured carbon and bring it to a central site.

Fire that carbon off into interstellar space.

Use the revenue generated from fees from heavy polluters who can't decarbonise effectively (things like steel making, glass works, air travel) to fund low carbon energy projects and storage/distribution systems for developing nations like in sub-saharan Africa and SE Asia.

Design a Linux phone. So sick of google and android. Currently looking at Fairphone 6 in the US as postmarketOS just got initial support, still need cellular, WiFi, camera to be functional, but considering it just came out a few months ago, pretty impressive.

End fascism

I would do so those things we said we would do as children i.e feed people. But, also go after all these fools destroying our world.

Garden! Big garden! With trees! Figs tree, cherry tree, plum tree, apple tree, walnut tree, more trees idk. Then I can have people over to eat the surplus produce, and when I'm too old to pick any myself they can be the ones to pick them and share some with me.

Bring back public broadcasting on both a federal and state/city level.

Fund the aggressive development of walkable greenspace, boost public transit and put measures in place to keep it un-gentrified.

Set up a public fund for trans folks of all ages to get appropriate gender-affirming care (medical, clothing, etc) and cover legal fees.

Make sure no kid ever has to pay for a decent school meal ever again.

And once those and any other QoL ideas I get are done; game and bake like nobody’s business lol. And set up a full blown home lab, and pick up VR again.

I feel like a lot of people are missing the “with your life” part of this. While I’m sure I’d love to magically fix the world’s problems, to answer the actual question:

I’ve always pictured a house built into the side of a cliff face that’s right next to a road. The rock pulls away to reveal the garage whenever I’m nearby. I’d have just a few rooms, nothing too crazy. I’ve always loved the idea of an underground house. I’d also have a decent-sized workshop/garage for the many projects I’m always working on.

I’d also try starting my own business for the first time and I’d be curious to see how my skillset applies. I can’t bring myself to do it in today’s current situation.

That and a Lamborghini. Because why the hell not? That’s what fantasy is for.

All this comes with the disclaimer that I don’t have any kids.

Open source hardware. Like, fully working enterprise grade that also scales down to Chromebook-budget.

If I must be selfish: Really really big telescopes/particle colliders and space exploration both sound very nice.

I always wanted to have a farm and be well off enough that I could take a good portion of the yield and just give it out in my old neighborhood.

Kids there are starving, most of them have never seen an eggplant, it's cheap ultraprocessed food or half moldy apples from the food banks.

I know there's a lot of other stuff too, but I think food education is pretty important, most of the adults I knew didn't know how to cook resulting in everyone eating worse for more money, thinking they couldn't afford to eat any healthier.

Although at this point my old neighborhood has been gentrified and filled with $3000/m studio apartments. I'd probably also buy out the neighborhood and give it back to everyone who lived there 10 years ago.

End income disparity.

Fuck it I deserve to treat myself to a few congresspeople and media companies

Increase the infrastructure and speed of public railways in the US. Trains needs to be atleast (1/3) as fast as airliners.

Draw all the things instead of worrying about shit. Make my city's public transport free, y'know, like the Waynes did. Lobby to ban cars from the inner city. Donate a bunch to whoever has the power to shrink the waiting list for autism assessment to a few weeks at most. Also donate a bunch to research on ME/CFS and lipoedema (volunteer as tribute). Donate to research in general.

I would do so those things we said we would do as children i.e feed people. But, also go after all these fools destroying our world.

Free education

Start in the US with the goal of recycling 100% of all recyclables, build waste-to-energy plants, use the energy to power carbon capture, slow/reverse climate change, build the first high powered thorium nuclear power plant. I could keep going, but I like keeping myself grounded in reality.

Beat the world record for most inflated currency. And femboy hooters

Yeah the other commentors have a point, but after all the lord's work is said and done, I'm fucking making video games and nobody can stop me.

Run a dog sanctuary, just me and a big piece of land with tons of dogs. Animals are better than people, give unconditional love, and don't drain my batteries like other people do

Reinvent academia and make quality learning accessible to all at all times with free infrastructure. Not only it would be the most fun challenge to solve but it also would keep me occupied for years. Also probably L the biggest positive impact one person could have.

Immortality via simulation