I believe he was strictly stating that this device outputs more energy than it requires for input, as he was attempting to prove with his flashlight demonstration.

It struck me more as like a pulley type system where much less force is required to move a heavy object.

The most interesting part of the video for me was when the one guy was trying to hold the end of the machine down. There is obviously quite a bit of force being generated from just using very little energy to swing the pendulum.

devices like this may not shatter laws but they may offer a peek into what is possible if the right combinations of things are hit upon.

anything is indeed possible.