On Mon, Aug 26, 2013 at 01:46:31PM +0100, BillK wrote: > So it is something inherent in 'intelligence'. Something that no > space-capable intelligence can avoid. Yes -- it is being existance. It's either mystery factor X, reliable against astronomical odds, or simply: we're not in anyone's smart lightcone (but our own). Fermi's Paradoxon ain't.