Back in the early 19th century when electricity was being studied by the pioneers of the domain, there wasn't any understanding what electricity even means; peo

Back in the early 19th century when electricity was being studied by the pioneers of the domain, there wasn't any understanding what electricity even means; people like Ampere, Volta and Ohm were alive, but the units named after them weren't. This didn't prevent the field into developing into what it is today, acquiring more knowledge along the way. As of today, we measure intelligence using tests on paper. In the future, it might be done using something like MR or CT, only more sophisticated. We can certainly map some cognitive processes in ways like that already, so it does not seem as absurd as walking in 6000 Kelvin on a gassy surface.