I was excited to read several articles about experiments generating anti-matter (production from gold or helium) at what seemed like a rather low energy cost. I thought anti-matter generation was the biggest obstacle to the development of things like pion rockets or other anti-matter-dependent propulsion/power generation devices, however, I didn't see any resurging interest in designing such things and no one seemed particularly excited. Did I misunderstand the importance of these findings?
I've considered the following reasons why these experimental methods might not be useful, and I'd appreciate your input:
- Positrons aren't useful, we need antimatter with mass (antiprotons), and these methods cannot be used to generate these
- Energy cost is still significantly higher than potential energy yield
- Supporting system requirements are still beyond our technical capabilities
- These methods still generate amounts far smaller than what would be required to propel theoretical antimatter drives