3 ms·
Was just going to say that we should perhaps start with using the term “speed of time” instead of “speed of light” to get in the right frame of mind. But then
by CuriousSkeptic 5y ago
Was just going to say that we should perhaps start with using the term “speed of time” instead of “speed of light” to get in the right frame of mind.
But then I started to think about it and it doesn’t seem exactly right either. Causality kind of implies interaction, and interaction implies mass (no?), so causality as such must necessarily be strictly slower than C. That is, the speed of the propagation of the wave function between causally connects to events is C but causality as such are the interesting things happening at those events.
- dnadler 5y ago> interaction implies mass (no?) Not necessarily. Photons, for example, are massless. But you're still pretty much correct. Information cannot travel faster than C. Though there may be some special cases that I'm not too familiar with. One I'm a little curious about is entangled quantum particles, though I'd have to do a little reading to be able to say anything further.
- wizzwizz4 5y agoEntangled quantum particles cannot transfer information, regardless of your interpretation.