Meow-Ludo Disco Gamma Meow-Meow - yes, that's his legal name - has the chip from his Sydney travel card implanted into his hand.

I met all these people during BodyHacking Con, in Austin, Texas.

Over the past three years, the event has become something of a pilgrimage for those involved in the biohacking scene - a broad spectrum of technologists, trans-humanists and performance artists. This year it also attracted the presence of the US military.

And, as I'd find out before I left, it has opened its doors to reckless opportunists.