That's the key - air, radiation, gravity, all the "invisible" parts of the universe are material. They have material effects that are distinguishable from them not having an effect. Putting gold foil in front of a radiation source will prove radiation's realness as the particles punch holes in the foil.
One of the key claims of ESP is that it doesn't act in a material way, instead being some weird vibe that nothing can detect except our brains, which are special because reasons. Electrons, neutrinos, even time travelling tachyons are actual, physical objects that exist and can be detected, electromagnetism and gravity will pull objects towards them, but ESP is based on the idea of there being something that doesn't interact with any other part of the universe, but somehow still grants us awareness of other parts of the universe.
That's the key - air, radiation, gravity, all the "invisible" parts of the universe are material. They have material effects that are distinguishable from them not having an effect. Putting gold foil in front of a radiation source will prove radiation's realness as the particles punch holes in the foil.
One of the key claims of ESP is that it doesn't act in a material way, instead being some weird vibe that nothing can detect except our brains, which are special because reasons. Electrons, neutrinos, even time travelling tachyons are actual, physical objects that exist and can be detected, electromagnetism and gravity will pull objects towards them, but ESP is based on the idea of there being something that doesn't interact with any other part of the universe, but somehow still grants us awareness of other parts of the universe.