The first couple of lines of this are the opening lines in the Andy Clark's fascinating book on predictive brain theory: https://www.goodreads.com/book/show/25823558-surfing-uncerta...

Wow! How did you manage to accumulate so many miles?

Mostly churning credit cards. Some manufactured spending.

any specific advice for others who want to accumulate so many points

I use Avacado oil. It is said olive oil should not be used for high-heat cooking as it has low smoke point unlike avacado oil.

Extra virgin olive oil has a low smoke point, 320F. "Light" olive oil has a high smoke point, 460F.