Socialism

How can you prove B exists if it's not measurable?

Because I've felt it, I've felt how understanding feels, because ultimately understanding is a conscious experience within a mind, you cannot define understanding without referencing conscious experience, you cannot possibly define it only in terms of behavior or function. So either you have to concede that every floating point multiplication in a digital chip "feels like something" at some level or you show what specific kind of floating point multiplication does.