maybe you know some friends or so if they knew they lived forever you know why work hard now or you know just enjoy your life you know and then catch up later so that's another problem with infinite horizon and you mentioned yes we can go to discounting but then the standard discounting is so called geometric discounting so $1 today is about worth as much as you know one dollar and five cents tomorrow so if you do this local geometric discounting you have introduced an effective horizon so the agent is now motivated to look ahead