> * The Falcon 9, the first partially reusable spaceship that actually costs less than not re-using anything

We don't really know that. This _appears_ to be the case but the accounting is strange. We would probably get better numbers if the company was publicly traded.

I really like the RocketLab designs.

Where's the funding for Skylon? Some US company with deeper pockets should license the design (the heat exchangers are incredible)