for spike protein in a matter of days, and make testable versions

only testable statements as meaningful, rejects metaphysical interpretations, and embraces

in isolation. One must always add auxiliary hypotheses in order to make testable predictions.

Linguists make hypotheses, take careful observations, and put together testable theories about how

While these ideas are based on real science and work on paper, they're speculative and not testable.

and produce testable predictions. In contrast,  'soft sciences', like psychology and sociology,  

These are testable claims

Basically, you come up with some question about the world, and then develop a testable theory about how you could answer that question.

but it's just now CPA exam testable,

But it's a kind of physics which is not yet testable,

aren't testable, (3) it isn't open to review by other scientists and...my favorite, number