I saw people taking about smart money, useless SMC trading formulas with fancy names of the same thing which a youtuber had talked about a decade ago. I don't think market is run by smart money its just supply demand and human psychology.
'Smart' just means some one who has better information than you. But no one trader or investor is big enough to 'run' the market.
Smart money is arrogant money. Just because someone manages a fund...that doesn't mean they are superior and have magical knowledge processes and are able to yield great returns. But most amateur retail traders and investors are pretty much dumb money, to their credit.