yeah, since efficiency is usually a measure of how much energy is lost to heat, should be 0% vs 100%... but, marketing.

I also doubt they are using aerogel or cryostats insulation to surround hot bricks. (or maybe that's why 1 container costs $9M?)

Matt (and team) from Undecided almost never approach their videos with a critical eye. Many startups' claims can be debunked with high school physics, but they just present everything as-is and with good production value. I consider their channel more entertainment than education, but still interesting to see some of the ideas out there.

*promote
(because I didn't expect to cry)

I heard every single one - just depends on which written phrase I looked at first when the video started playing.
Try it, it's trippy. Focus on 1 option, then click replay.

maybe it's just this trailer, but seems this one is taking a dramatic departure from the other Evil Dead movies' tone.

I've personally seen the GoGoRo electric scooters mentioned #15 - it's a neat idea, and the battery-swap "kiosks" are conveniently located and fast/easy to use.
It's a good solution for any country that already has a large scooter infrastructure (like Taiwan), but don't think it would ever get adopted in USA.

at least he did follow up:

https://nypost.com/2022/11/03/joe-rogan-finally-admits-that-school-furry-litter-box-hoax-was-a-lie/

I've been to Ferrari World (on that same island) - it was less of a theme park, and more of a Ferrari museum which happened to have a rollercoaster.
The Emiratis like to compete with each other - this new Sea World will be much larger than the aquarium inside the Dubai Mall.

reminds me of Delta 3D printers. Quite genius, but seems the arms/legs/elbows of this might collide with the working surface, although the "platform" could just be made taller to compensate. Won't want it to be too heavy though, as it would lose speed.

1 small point of correction - the workers are on break between 10am-3pm in the summer, which is when you see those >50C temperatures. They worked all through the night, and you can't pour concrete in the day because it's too hot and dries too quickly.
An exceptional (i.e. not the norm) construction company was one that paid it's workers what was promised, and on time. All local companies had to be 51% owned by Qataris, not sure if that changed as part of their 2018 reforms.