It's not enlightenment, it's a TEDx talk. There's a mix of good and bad in this video. For instance, he points to the "I am" (aham) and its transcendental status prior to the emergence of space and time (which are products of the dualizing mind). But then he identifies the "I am" with the physical energy that was the state prior to the Big Bang, and that's not... not so good. He probably uses it as a strategy to convince people, because science is convincing. But it's sloppy. Science is science, leave it be - it studies matter and energy as they are in their externality - as stuff that is "out there*. The consciousness of the "I am", the transcendental I, is not found anywhere "out there", not even before the Big Bang. If we want to use his "cinema" metaphor; the witness of the movie is never identical with what is in the movie - even if the movie is showing the point of energy at the beginning of the Big Bang. But he identifies them - and that is self-contradictory.

I'm not attacking him just because I enjoy doing that or because I want to prove I know more than him. I definitely don't, I know much less, he's an engineer. The problem with using empirical science to describe spirituality is that we lose both in the process - we make science, hard science, mushy, which it shouldn't be, and we reify the spiritual kingdom which is something that exists purely subjectively, it is not found in objectivity, not even in the energy prior to the Big Bang. It is nowhere found in this Universe or any other Universe in the Multiverse.

His explanations identify the Self with energy (prāṇa) - so he progressed to there, but there is further to go, there is a reality more subtle than energy itself, the energy is an effect of something else, it's not the cause. So he's mixing cause with effect. Sorry, you won't get enlightened from this video. You will learn some good things, some bad things, and then get confused. My advice is look at tradition - what is new isn't automatically better than what is old, what has been established 5000 years ago and continually refined in a lineage of masters and disciples.