The hidden potion

it was once said that this potion was mythical because there was only one in the universe. 1 drank it, he became unstoppable. and here we are reproduced it after 1 million years after it's use... the 1 who used it was steve his twin is still alive... his twin was more of a risk taker he was more advanced than rest of the world, he told everyone his story, they believed everything. they all went to the past and made themself invisible as he showed everyone around. and then went back to the future...