jkd

@forest my point was that it would stop evolving as soon as it achieved immortality while other creatures may evolve to be smarter.

It may actually be dumber because it doesn't have as much pressure to survive by being smart.

Just make it expensive. It only takes a little bit to power a ship.

@Fl.pf."I am thinking of copying the design of an electric eel to create the horn, however as air is not a good conductor of electricity it cannot discharge any electrical shock unless there is a physical contact."

As far as I know, we can't deflect any big rocks coming at us either, yet...