Space

Why?

One day – but only if work hard now – the human civilisation could look back on its history and look disgusted at the time where we had countries, borders and put the short term profit before the long term goals. At the time where humanity was bound to this Little Blue Marble, where they exhausted the only liveable environment known to them.

If humans of the future could think like this, than part of Star Treck Spirit has become reality.