The difference between Bitcoins and Jesus?
Bitcoins are real.
Some, more philosophically inclined characters, might take issue with that point.
As for Jesus, no, he is not real.... in your mind/heart.... because you've not accepted him yet.
My personal assurance to you, however, whether you like it or not is - BitCoin and Jesus are as real as the back of your hand.... or as real as coffee table sex.