asciilifeform: 'recycle' the coin by moving from Y->X when some time passes (to minimize fee.)
asciilifeform: you'd 'log in' once, by sending a tx with some specified value to 'A' (addr of 'channel') and two others, say, X and Y. low byte of every tx value X->Y is a payload byte.
asciilifeform: mircea_popescu: that was the object of the (gedanken)experiment, yes.