When the S and P is back to its ATH, what’s going to be the main reason?

As well as, why is everything up, and the market down?

I’m not really new to investing, I just don’t really know how it all works.

I have a Roth IRA and a taxable account, low cost ETF’s that track the s and p. How do I supposedly have an amazing long term plan despite not knowing anything? People that know more and spend much more time with all of it, that do worse, what are they doing? Lol

That’s basically the name of the game?

A crash, back to ATH, years of growth, a crash, back to ATH etc? Pretty much averaging out to a 10% annual growth per year?

Despite someone not knowing what’s happening year to hear, I’m not really sure how so many magically think someone will be rich if they just keep depositing for 30 years