Ed, the more you know also means..
the more you don't know. I find that the most educated individuals are also the most humble and soft spoken. The loud arrogant ones are the ones who think they know it all and don't have a clue. You are on the right track - knowing and not knowing.
I don't know who said Marelon was bad - it certainly was not from an electolysis or corrosion perspective - maybe a structural thing but that too is going away with the advancements in plastics. Here is a good link from BoatUS about corrosion.
the more you don't know. I find that the most educated individuals are also the most humble and soft spoken. The loud arrogant ones are the ones who think they know it all and don't have a clue. You are on the right track - knowing and not knowing.
I don't know who said Marelon was bad - it certainly was not from an electolysis or corrosion perspective - maybe a structural thing but that too is going away with the advancements in plastics. Here is a good link from BoatUS about corrosion.