Through the evolutionary process, those who are able to engage in social cooperation of various sorts do better in survival and reproduction.

From each as they choose, to each as they are chosen.

What else can matter to us, other than how our lives feel from the inside?

One way to determine if a view is inadequate is to check its consequences in particular cases, sometimes extreme ones, but if someone always decided what the result should be in any case by applying the given view itself, this would preclude discovering it did not correctly fit the case. Readers who hold they would plug in to the machine should notice whether their first impulse was not to do so, followed later by the thought that since only experiences could matter, the machine would be all right after all.

The scientists often have more unfettered imaginations than current philosophers do. Relativity theory came as a complete surprise to philosophers, and so did quantum mechanics, and so did other things.

Philosophical argument, trying to get someone to believe something whether he wants to believe it or not, is not, I have held, a nice way to behave towards someone; also it does not fit the original motivation for studying or entering philosophy. That motivation is puzzlement, curiousity, a desire to understand, not a desire to produce uniformity of belief. Most people do not want to become thought-police. The philosophical goal of explanation rather than proof not only is morally better, it is more in accord with one's philosophical motivation.

Marxian exploitation is the exploitation of people's lack of understanding of economics.