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[numerobis]

I've been away a few days and am surprised not to see any mention of the earth-scraper proposed for Mexico City.

240 meters square, 300 meters deep, inverted-pyramid, with a clear glass roof.

There are many technical reasons why this is unlikely to be built IRL, but in DF it doesn't seem like it would be too hard.  That suspended metro stop could be the initial fortress.  240x240 isn't a problem.  My calculations were indicating you wouldn't want to be deeper than 50m to ensure natural light reaches the entire structure, so just 50z is plenty.

[EveryZig]

I've been away a few days and am surprised not to see any mention of the earth-scraper proposed for Mexico City.

240 meters square, 300 meters deep, inverted-pyramid, with a clear glass roof.

There are many technical reasons why this is unlikely to be built IRL, but in DF it doesn't seem like it would be too hard.  That suspended metro stop could be the initial fortress.  240x240 isn't a problem.  My calculations were indicating you wouldn't want to be deeper than 50m to ensure natural light reaches the entire structure, so just 50z is plenty.

It already has been mentioned due to its immense impracticality dorfyness.

[numerobis]

Oh, it was mentioned in passing on another board I now see...