I think consciousness is programed to first and foremost identify your skin to be your boundary (for survival). But then, when you train to master an external t

I think consciousness is programed to first and foremost identify your skin to be your boundary (for survival). But then, when you train to master an external tool, like a bike, you feel the boundary of the whole system to be your boundary (for example: when you're able to manage the bike at incredbly flexible level, ie you control it at will). Same for cognitive medium (like mathematics, we are able to think in term of mathematical concept to express ourselves better in daily life matter -> we have more freedom), so augmented human seems far future, but tools are augmenting us everywhere. (Augment = expand capability). And the limit of my tools are the limit of my world. It's also true for other-regarding preference, if you identify someone (your kid) to be yours, you can take a cost for them. Or lovers, they self-interest the joy of each other.