Thanks for the reference. I have a number of issues with that essay, but fundamentally, once we have people on Mars we'll have exactly this issue. There's no

Thanks for the reference. I have a number of issues with that essay, but fundamentally, once we have people on Mars we'll have exactly this issue. There's no easy way around it and we'll always have to negotiate hours that work for both parties (which is what I basically have to do with my family who are about 90º phase shifted from me).