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Now, with special relativity applied to the scenario of me getting closer and closer to light speed, my mass would increase with respect to the observer, and also my length would contract in the direction of motion, again with respect to the observer. Now, if this is allowed to continue, there certainly would come a point where my mass would be observed to be very very high, and my length contracted to below my Schwarzschild Radius, now what would happen in this scenario? Would the observer observe a black hole while observing me? if not, what would the observer actually see?(If the observer sees me as a black hole, shouldn't that technically not happen since nothing is different to me from my own point of view!? )

Would I turn into a black hole? and if not, what would the observer see if I do not turn into a black hole? Would the observer notice any gravitational effects from me?

Hritik Narayan
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OK... I can't give a definitive answer to the problem. My intuition tells me that any massive particle or macroscopic mass, boosted high enough, has to look like a black hole. Why? Because it is very hard to see why/how gravity, if we believe in the equivalence principle, should be able to distinguish between kinetic energy and other forms of internal energy (which, by the way, for the case of baryonic matter are also largely kinetic because of relativistic quarks inside the nucleons).

I think the real bummer here is the question what properties a highly boosted Schwarzschild metric really has and what that means to a test particle that gets caught in the near field of such an object.

CuriousOne
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