It’s not an easy strategy to get right, but General Galactic, a stealthy new startup, hopes the approach will let it drive prices down for so-called e-fuels, which produce hydrocarbons from captured carbon dioxide, the company told TechCrunch exclusively. The company was born out of co-founder and CEO Halen Mattison’s time at SpaceX. Mattison urged SpaceX to tackle the problem, but it was too tangential to the company’s goals at the time, he said.