Both are Exchange Traded Funds from Vanguard. VTI is "the whole US stock market, and VOO is “just the S&P 500”.
- Open a brokerage account, I usually recommend Fidelity as I find them easy to get newcomers onto.
- Put the money you want to invest in there.
- Use that money to buy either fund
- Forget about it for 10 years
- Now you have your house down payment, probably
I saw this movie, and I have no faith we have a real-world Neo to save us from it.