I havn't run the number but I am guessing ...

Instead of guessing why not just run the numbers? Is that because the numbers do not agree with your guess?

How many GHs do you think will be required by the end of 2015 in order to earn 1BTC a month?

You tell me. You are the one making the claim:

I havn't run the number but I am guessing there will simply no way on the planet to power a mining facility.

How did you come to this? What numbers did you use?

Can we assume 20% every 2 weeks?