"Trickle down economics" is a loaded term. It's not an actual theory advocated by any economist or politician[0].

[0] https://www.creators.com/read/thomas-sowell/01/14/the-trickl...

kind of, but with the actual intent to make it work. the lie behind "trickle down economics" wasn't that it can't or never works as advertised, but that it doesn't automatically happen just by letting people get rich and the reaganites talking about it never intended for it to work. basically every rich country got rich through some form of uneven development