Notice how whenever someone claims there are ways to consistently beat the market by some incredible amount, they never seem to be able to point to anything specific. It’s always “Ohhh, there are these hidden wizards who do it, and they (conveniently) don’t tell anyone the ways of their sorcery, but trust me, they exist in dark smoky rooms somewhere!! You’re just not invited.”

It’s like “I assure you, extraterrestrials exist, there’s just no visible evidence of them and they never show themselves. But they’re out there I swear!”