I don't understand how people can hate on this. It's probably the most novel & ambitious consumer health device ever? Plus they're doing it fully bootstrapped. Let them cook!
LEDs are pretty insane these days - the ones we use have an L90 (time until they hit 90% brightness) of >50,000 hours (17 years if you use it every day 8 hours a day).
Yep lumens are additive (though your eyes perceive them logarithmically).
I don't know much about car headlights, but chatgpt says high beams are typically 25-45 watts, and assuming a generous 200lm/w that gives you 5000-9000 lm.
Roughly speaking, it's expensive because it's 50 lbs & tons of electrical components (that are much higher quality than $24 headlights).
The controls weren't working because we had wired them up according to the labels which were wrong (which is also why the measurements didn't make sense to us).
This Reuters article claims OpenAI is going to generate $3.6 billion in revenue this year, but the costs will lead to a loss of more than $5 billion. It expects a major revenue jump next year to $11.6 billion
The article linked[0] is from last year.
A recent article[1] from this year says "OpenAI looks to meet its full-year revenue target of $13 billion and a cash-burn target of $8.5 billion, the report added."