It's impossible to travel 'faster than light', AFAIK, since the faster an object travels, the more mass it gains which requires more energy to propel the object until it reaches 'infinite' mass requiring 'infinite' energy.......
To reach light-speed, an object would have to be massless which would mean it wouldn't be an object (in the traditional sense) since objects have mass. If it were possible to convert an object into pure 'information', faster-than-light speed might be possible, but we're talking Star Trek-transporter technology which is nothing but science fiction at this point.
There's no metal or gems known that could withstand the friction that traveling a fraction of that speed with cause. No one's every traveling that fast.

I hope you're not serious. That's not abstracting energy from water. That's using water current.

