Psionic Bias?

[The Glyphstone]

'Indistinguishable from magic', not actually magic. Magic breaks the Laws of Physics, science works from within them.

But to someone uneducated, or sufficient ignorant, they'll be functionally identical. "Magic" is an incredibly vague term in that case...teleportation or personal flight are both magic spells, but they've also got significant presence in science fiction as technology-based. Violating the laws of thermodynamics with, say, a Fireball spell could be harder.

If you just define 'Magic' as 'Impossible Things', then yes, we will never discover magic...but then it becomes a cyclical argument.