Luke Constable probably does not exist.
Select academics believe that he may be a collective; that one man could not have so many talents, be so creatively prolific, and achieve stylistic diversity and social omnipotence in so many vocations. The theory states that a group of many talented artisans produce under the one alias.
Some say that Luke Constable is a benevolent mythical figure of Brisbane indie folklore. Others say that he is a metaphorical symbol of inspiration and poverty and that he is 'in us all'.
Scientists have calculated that such a man would never eat nor sleep, would be constantly working, learning and producing at the same exponential rate, and that he would have a brain more versatile and larger than any Homo Sapiens.
He may simply be just this; wordpress site that through corrupted code has gained self awareness.
Exist or not exist, that is not the question. The only tangible proof that we have is in his work, which is conveniently available on this site. It is diverse and not only demonstrates competency in a multitude of fields but is highly individual and seriously fun.
Please view his work and if you think that is so fantastic he can't exist, search for him. He's left an email and someone seems to respond to that.