To reach sat dollar parity, global net worth will need to grow at least 4x. We could get to that within 10 years, and easily within a generation.

Theres approximately 8 billion people on the planet.

The global wealth is in the ballpark of $500 Trillion. This puts the average net worth at something like $62500

Theres a maximum of 2,100,000,000,000,000 sats. This puts the average sats per person at about 262500 sats.

If all global net worth was in sats, each sat would be worth about 24 US cents in todays money. But I like to take Hal's figure of 20 million Bitcoin. Thats easy to calculate and make a nice round 25 cents per sat today.