3 ms·

Also, to clear things up, you are mixing two point of view here, so here is the separation (you are the object going into the black hole): "the universe would

Also, to clear things up, you are mixing two point of view here, so here is the separation (you are the object going into the black hole): "the universe would appear to be slowing-down/getting-smaller until it had dimensions of zero" From your point of view it would appear to be getting smaller, although I don't think it would go as far as dimension 0. "(or to put it another way, time would "stop")" It would appear to the external observer, that YOUR time had stopped. But from your point of view it did not stop, nor did their time from their point of view. "An outside observer would see me moving faster and faster and "stretching" longer and longer." You would feel you are falling faster and faster. The external observer would see you stretching longer and longer. (Although you would also feel like you are stretching, because of the difference of gravity between your head and your feet, but much less than for the external observer)

jp555 12y ago
Ah I see where I mixed things up. Although I understand that at C "time stops". But since time and space are the same thing, this is the same thing as "all distances are zero". From the point of view of a photon the Universe has dimensions of zero. This is why FTL is impossible; it's not possible to travel a distance less than zero; it's completely nonsensical. If we consider C a "speed" in the classical "speed of sound" the idea of FTL makes sense. But when considering C as a fundamental limit of space-time FTL makes no sense at all.
- Voloskaya 12y ago
  Another thing that might interest you: "lets imagine I'm infinity tough and not torn to shreds due to tidal forces" In fact you don't need to be infinitely tough. If you choose a black hole large enough (like the massive black hole at the center of our galaxy), you would just need a space suit and you could go into the event horizon without being pulled apart by tidal forces. You would be absolutly fine (their may be other dangers though...).

jp555 12y ago

Ah I see where I mixed things up. Although I understand that at C "time stops". But since time and space are the same thing, this is the same thing as "all distances are zero". From the point of view of a photon the Universe has dimensions of zero. This is why FTL is impossible; it's not possible to travel a distance less than zero; it's completely nonsensical. If we consider C a "speed" in the classical "speed of sound" the idea of FTL makes sense. But when considering C as a fundamental limit of space-time FTL makes no sense at all.

Voloskaya 12y ago
Another thing that might interest you: "lets imagine I'm infinity tough and not torn to shreds due to tidal forces" In fact you don't need to be infinitely tough. If you choose a black hole large enough (like the massive black hole at the center of our galaxy), you would just need a space suit and you could go into the event horizon without being pulled apart by tidal forces. You would be absolutly fine (their may be other dangers though...).