Also at just one issue another person yells out, "exactly what the physics?!" and for a few explanation that basically tickled me. ??? ????? ??? ????? ?? ?? ?? ???? ????? ???? ???? ??? ?? ???? ???? ??? ???? ?? ? ??? ???? ?? ?? ???? ????? ????????????? ???? ?? ???????? ????? ?????? ?? ????????? ??? ???? ????? ??????? ?? ???????? ??? ????? ???? ??