further CELSS

>>if we do not perform 100% closed
experiments, we will never know exactly what's going
on and will be "hoping" to provide sustainable life
support rather than "knowing" that we can.<<

Good! Now I have finally heard a good reason to do
100% experiments. It is not to produce a 100%
sustainable closed system, but to understand all the
factors in a sustainable life system. This makes sense
thank you.