As to why Greenland is being eyed for a city of the future, Praxis founder Dryden Brown told The Post, “We find the frontier to be exciting and want to take on heroic challenges. Building a city on…{ai:summary}<p>It appears that no content was provided for summarization. Please provide the text or topic you would like summarized, and I will be happy to assist.</p>

Praxis has raised $500m to build a cybercity operating independently of any country — but where will it be located?

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