The flash is a very good tv series. It contains a lot of scientific information. But it might not be realistic due to the fact that all thing is slower than light so Barry Allen (the flash) can not run faster than light. But overall movie is good. It has the theory of the alternate world which for me is really cool. Barry Allen said that he is the fastest man alive but there always be a guy who is faster than him in the series even though Barry run faster every season but there will always be a guy who run faster than him. Barry also capable of going back to the past and going to the future because when he run fast the time around him goes faster but when he is faster than light the time goes backward.