Not signing up either, just wanted to leave a tip of the hat to the memory of Robert A. Heinlein, a great propounder of the "Pay It Forward" idea (cf. http://ww

Not signing up either, just wanted to leave a tip of the hat to the memory of Robert A. Heinlein, a great propounder of the "Pay It Forward" idea (cf. http://www.heinleinsociety.org/ http://www.heinleinsociety.org/ ). Philip K. Dick, a much different writer, had personal reasons to appreciate him. Incidentally, Heinlein wrote up some good hacks in his books - including the waterbed (I seem to remember it could not be patented later when they came around to making them).