[TangoLimaSierra]

Just one stage of the laser amplifier is less than 50% efficient. I would not be surprised that the input might be 10x the delivered energy.

You don't seem to understand what "break even" means.

[TexasGator]

“You don’t seem to understand what “break even” means.”

I understand what break even means. I don’t understand what you mean. Sarcasm?