[cuban leaf]

The concept as it existed is defunct, it failed experimental verification.

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Yeah. I get that. That’s why I said, “Yes, but this is the same as the ether that was put to bed in name only.”

i.e. same name. Different concept.

Kinda like dog bitch vs the other kind. :)

[Boogieman]

“same name. Different concept.”

Either way, it fails experimental verification. In order for the ether to do what you need it to do for the theory to work, it has to have certain qualities, and those qualities have been determined experimentally to not be present.

You can propose a million different kinds of ethers, but the ones you need have been proven not to exist.