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> - Earth will have another 10,20,30 Billion people living on it

Unlikely.

> - These people, ... lots of kids, and more

Also unlikely.

> - Human will inhabit more parts of the Earth that are uninhabitable

Unlikely

> spending of billions of additional humans (iPhones, Televisions, etc)

Unlikely

> - New technologies will require orders of magnitude more energy, such as flying cars, space travel, etc.

Yes, likely.

World population is set to decrease. Birth rates in the US, UK, Japan, South Korea, China are all below replacement. This seems to be a general trend that happens when countries reach a certain level of development.

I think most models should show world population peaking, and then declining.

I agree that nuclear is probably our best bet. The high profile screw ups (like Fukushima) are annoying and decrease public trust. But we need to get better at creating/regulating safe nuclear solutions.



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