It's of course a matter of taste what expression sounds more fitting to you, precisely because time is such a fluid concept. Personally, when I think about a n

It's of course a matter of taste what expression sounds more fitting to you, precisely because time is such a fluid concept. Personally, when I think about a neutrino for example, I'd say that neutrinos go crazy fast, and they experience time unimaginably slowly, so it feels more natural for me to think that velocity and time are tradeoff values of each other.