Why don't we build an Earth twin?

Question

We'd have to do it, maybe with lasers and 3D printers. Or maybe some kind of fancy atom manipulation. Make it massless, or somehow gratityless, until we're ready to move there. That way the planets won't collide. Then we hop on over there if some kind of emergency arrives, just after switching gravity with planet Earth. 

A few details to work out.

Answer 1

We don't even have enough money to build a space colony on Mars.  There's no way in hell that we could afford to pay for "another Earth."

Answer 2

god what  do stupid people do all day  make it out of something but make it massless 

just for the record a 3 d printer   makes matter from matter ..so it would take   1kg of  stuff to make  1 kg of  3d printed stuff 

it probably takes a bit more as there is a conversion loss probably 

Answer 3

There already is one, on the exact opposite side from the Sun.

China is planning to send a probe there.

Answer 4

an ant contemplating doing godlike things.... this the only planet we on and probably gonna die on from the looks of it besrt to enjoy life itself

we are looking for another earth like planet but we cant just build one

Answer 5

Don't you think we could improve on it right about now ?

Answer 6

Wake up man it is already nine in the morning.

Answer 7

Because the US signed the Outer Space Treaty.  The new Earth would be something the US taxpayers would pay for, but couldn't claim ownership of if they followed the treaty.

Answer 8

Because we don't have anywhere near the technology to do that, YET. maybe in 10,000 years?we MIGHT

 

Answer 9

Awesome!  Can we have pink unicorns there too?  I'll take mine with purple wings