As far as I can tell the Icon of the Seas is basically fine; even on the environmental front (important!) I see no reason to believe it's worse per passenger than other ships.

A lot of opposition to it feels like elite snobbery against middle / upper-middle-class people.

Any good anti-Icon arguments I'm missing?

We should strive for more! Let’s build cities on the sea. Let’s build cities in the sky. Let’s build cities in the space. Let’s build cities in other planets!

Cities on the sea populated by all the remaining intellectuals on the planet is the plot of the Braintrust series, by Marc Stiegler: Product manager of Xanadu browser, author of Earthsea (the first fiction novel to depict a prediction market based society).

🇧🇷🇺🇸-  Book: Making Things Think: https://holloway.com/mtt. Investor in Wander, Carry, Footprint, Merkle Manufactory (Farcaster), Dynamic, Paragraph.

Cities on the sea populated by all the remaining intellectuals on the planet is the plot of the Braintrust series, by Marc Stiegler: Product manager of Xanadu browser, author of Earthsea (the first fiction novel to depict a prediction market based society). https://www.goodreads.com/author/list/401794.Marc_Stiegler

Really taking Amsterdam's boathouses to a new level. I guess it would work if it's not moving around all the time to reduce the environmental impact.

Surely this is just a step towards that. Nobody’s going to build a multi billion dollar development without some proof of concept