There was a young lady of Wight Who travelled much faster than light. She departed one day, In a relative way, And arrived on the previous night. The… - Stephen Hawking

There was a young lady of Wight Who travelled much faster than light She departed one day In a relative way And arrived on the previous night

There should be no boundaries to human endeavor. (...) However bad life may seem (...) While there’s life, there is hope.

The message of this lecture is that black holes ain’t as black as they are painted. They are not the eternal prisons they were once though…things can get out of a black hole both on the outside and possibly to another universe. So if you feel you are in a black hole, don’t give up – there’s a way out.

As an object approaches the speed of light, its mass rises ever more quickly, so it takes more and more energy to speed it up further. It can in fact never reach the speed of light, because by then its mass would have become infinite, and by the equivalence of mass and energy, it would have taken an infinite amount of energy to get it there. For this reason, any normal object is forever confined by relativity to move at speeds slower than the speed of light.