> If unicorns exist, but humans can never observe them do you really care whether they exist or not? I do, actually. It depends what you are using the unicor

> If unicorns exist, but humans can never observe them do you really care whether they exist or not? I do, actually. It depends what you are using the unicorns for. If you use them for their blood for extending your lifespan, no they don't exist. If you are using the metaphor of unicorns as "the go-to thing which is used as a counter-example of existence", then they do exist. "Existing" is nebulous. > The interesting number paradox only works for countable sets unless I am mistaken. You can have "interesting" real numbers. Ah yeah, right, that relies on on sequencing.