The point is that saying Shazam is just a button ignores the huge amount of effort that sits behind it. Not just the technology but more importantly the sales and marketing to get to the number of users they have.
Amazon or Youtube are not magic either. But good luck getting to that same scale without significant effort.
and saying "they have an app" is ignoring OP's actual point, which is all i am trying to defend. no one is calling into question the merit it's taken to build Shazam as a company.
how do i find myself defending the most ridiculous shit here?... like an algorithm can't work without a UI.
> guy 1: "index the Fourier Transform of all songs"
> guy 2: "[don't forget about] their huge database[!]"
how is this not contrarian? biz guy spotted? the dude straight up fucking said to build a database of "ALL SONGS". if you think that's simple you're either not thinking hard enough or you have no idea what he's talking about.
Amazon or Youtube are not magic either. But good luck getting to that same scale without significant effort.