Dave D :

I figure we both know a little and have learned from a few mistakes. We have a lot left to learn. It does not make a difference if we know 1 % or .98% each , that is still a little. But collectively we know 1.5 % (some overlap) but if one of us does not join in and share his part we both know half as much. If we let what we don't know stop us from joining in we all lose.

Its not about what you know , its about what you don't know but are willing to learn. No one here knows even 25 % of what there is to know about ponds so don't let what you don't know stop you. If knowing the answers was necessary to post then none of us would ever start posting. Carpe diem.