Re: 100 lb of Lead Vs 100 lb of concrete
encapsulated in your keel... lead is not going to hurt you. Sanding it, touching raw lead, or cutting it without proper biohazard precautions would bring about lead poisoning.. and that can take years to get over.
Concrete ships are nothing new. The US was playing with them in WW1. There is the remains of one off of Cape May NJ. The Atlantis. It was mothballed after the war and towed to Cape May to make a ferry terminal. Unfortunately it broke loose in a storm before it could be sunk in place and was blown ashore at Cape May Point where it has slowly deteriorated and sunk deeper into the sand.
Almost 100 years after she was launched, there is not a lot left.. but a lot more than if she had been built of steel
In the end all that matters is how fully you loved, how gently you lived, and how gracefully you let go of things that did not belong to you -buddha