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Hello Ugo. Glad to see you were able to visit Egypt finally. It was a place on my bucket list for years, but is probably not going to happen now ... It’s a very long flight from the US and I don't intend to fly again except for an emergency. And I would be just another tourist in the way.

But reintroducing whales and other deep sea life could eventually have a very big impact on our worlds environment and human society. In fact part of our problem is that we have wiped out so many species that we don’t even know how the biological environment once worked.

Biological methods seem to work well in the few areas we have tried them ... when we aren't caught up in fever dreams of mirrors in space or settlements on Mars.

But that means encouraging different species for different places and no one size fits all solutions ... and engineers hate that diversity since they can't just replicate their favorite bit of technology everywhere.

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