So I just found out that A7, A8, A9 aren't random; turns out they're slang terms that are well established among property speculators. A7 means a million, A8 eighty million, then A9 hundreds of millions. Up to A12, which is already hundreds of billions.

The coolest part is they use A7.3 to show a more specific number, so A7.3 means 3 million. Basically, this is their quick way of talking about wealth levels without having to mention long numbers. Like a secret language.

I watched people discuss the meaning of A7 and these asset levels on a property forum, and it turns out many have already moved up to A12. It seems in big cities, you can really meet some A12 level friends without realizing it. So while you're out walking, maybe someone has already reached that level. Pretty eye-opening.