I'm trying to understand a abstract principle of travelling at light speed. My understanding of anything that contains mass that goes near light speed, would have one major problem, that is how would the mass stay together? Wouldn't there be varying speeds at the start of light speed that would completely destroy any mass. Even though the time references would be in the millions to billionths to... of a second. Wouldn't that be enough 'time' to separate a physical structure? I have the perception that, any physical structure or anything that has mass, is both or one, has a maximum limit on how fast it can go before the physical or mass collapses due to the sheer speed at wish the object is travelling at.