It may sound weired but if you really think about it ..it makes hell of a sense ..
Fore the beginners here is the deal .. Start living half a mile below the surface of earth .. I am sure London Tube goes around that depth ..
Question is why ..
1. There is no risk of Earthquakes. Shaking of surface is largely a surface phenomenon. Its something like you cant feel the waves below waters ..ha ha ha .. disturbance just pass thru the structure without any harm ..
2. There is no risk of UV radiations ...
3. No Floods .of course you need to seal the gates ..
4. No threat of meteorites ..only few of them can go as deep
5. More space on the surface for animals and farming ..
Now you might say sounds good but why the hell we invest on this .. The answer is why are we spending billions of public money to find another planet while we can explore [sorry ..we have] a better and controlled living with in our own earth. Assuming the global warming ..the surface wont be livable anyways say with in 50 years .. we need plan the journey below the surface .. Subways are so successful ..why cant we have shopping malls at the same level as Piccadilly line .. and schools and hospitals and residential complexes ..
So the next question is who owns this layer .. How can i buy 3000 Sq ft just half a mile below the Taj Mahal ..
Think about it .. it may sound a "Shutri" ..but Patal Lok is coming on to us .We have all the technology .. all we need is to start digging ..
Cheers