Even if it is verified it's not groundbreaking. X-Ray litho has been done in labs since at least the 90s.

The opposite is also true - you can use options to increase risk. I don't think insurance is a particularly good analogy in general.

I mean generally speaking derivatives can be used as insurance or for speculation, and a wide gradient of gray in between.

By contrast, sports gambling is well, gambling. And importantly as we've seen in a lot of reports - the big online sports books essentially freeze out anyone who is good so that they are collecting revenue primarily from the.. innumerate.

Of course you also have some markets like India without legal gambling and oversized derivatives markets that are unfortunately serving as a replacement.

I'd also point out that you don't see the sort of degenerate nonstop advertising for options punting that you see for sports gambling. "Thanks for tuning into the ESPN FanDuel pregame show at the Caesars Superdome / and don't forget to stop by the DraftKings Sportsbook lounge." Followed by a barrage of other gambling ads in between plays.

Electric generator->battery->electric motor drive train should be fairly efficient. I'd be surprised if it was lower than 80%.

Traditional dynamos are fairly small parasitic loads and not really comparable.

Thats called a series hybrid and it kinda sucks. Motors only reach high efficiency at high loads, and you have 2 of them between the feet and wheel. That configuration is bad when the battery dies because you will feel that inefficiency.

Dynamo is the general term for electric generators from mechanical displacement. I'm not talking about the small contraptions that power lights on a bike, these are traditionally even worse in efficiency.

Lets be charitable and call it 90%, it's still going to charge the battery (which is described as a buffer), and that will have a max of 95%, discharge the battery, same, and power the motor, which has likely the same efficiency. You're at. 9.95.95*.9 = 73% efficiency at motor output. You're giving 27% to the gods of thermodynamics, unless you like the extra complex cardio you're getting, I don't really see the point. Regular bike transmissions are not free either, but they're closer to 95%.

Thinking about all that, I don't get why they didn't use a hub motor. Why adding a belt when you could have transmitted the power directly to the wheel?

Your original post says 70% loss, i.e. 30% efficiency. In the context of an e-bike, to me, 70% efficiency is fine. It's a large bike and the majority of the power for the majority of users is likely going to be coming from the battery anyways.

Also presumably we should be comparing the efficiency to other ebikes not traditional bikes. I'm not sure how effective traditional ebikes are at integrating motor + human power together but I'd imagine there are some additional losses.

Normal bicycle drivetrains have efficiencies around 95%...

Haven't there been studies showing that a bicycle is the most efficient form of movement available?

> I'd be surprised if it was lower than 80%.

80% is really bad for a bicycle. A well-maintained bicycle drive chain is basically 100% efficient.

Mine goes somewhat unused because of this (although definitely less than 10 swipes per try). If I was to buy another ereader I'd want at a minimum physical buttons for forward/back.

Claude max is $200 a month.

Consider a fully loaded cost of 200k for an engineer or $16,666 per month. They only have to be >1.012x engineer for the "AI" to be worth it. Of course that $200 dollars per month is probably VC subsidized right now but there is lots of money on the table for <2x improvement.

This is precisely what I suggest, companies should pay for team plans like the one you are describing and see what comes of it.

My MacBook depreciates at higher than $200/month.

That is a tenancy in common 2 bedroom apartment not a house. Shared ownership of a 100+ year old building with "leased" parking 2 blocks away. Not exactly the home ownership dream.

I own one unit in a 2-unit condo built in the 1910s in SF. It’s pretty fucking dreamy if you ask me.

different strokes for different folks. I can't fucking stand hearing every breath of every neighbor in a 100yr old SF house and having to tiptoe at all times so as not to upset the other tenents

I am almost never aware of my upstairs neighbors, through two pairs of them, including a dog and a baby.

Then click around to find something more your liking. There are a lot of places for sale for under $3M that aren’t exactly a tent under a bridge.

Luckily you can live in a city and then later sell that appartment and buy another house in the sticks that is the dream.

That too for $1.5 million. 99% of Americans would picture a mansion when they think of a $1.5 million home.

Hey now, around 15% of the population live in CA or NY so I think your estimate is too high

There's a bajillion of them around if you search "neck cooler" or similar. Very simple product sticking a few commodity items together. Some do only have fans though.

When I looked a while ago there wasn't really a clear winner or high quality unit. There is the "Coolify" series that are much more expensive but still somewhat middling reviews overall.

Depends on the manufacturer how many unique bittings would be made. I believe ~1000 was common. So pretty low chance but high enough a few people have stories here or there.

The birthday paradox probably comes into play here, somehow. Not a mathologist so...

This isn't really surprising. Fiber isn't better because of signal propagation speed, it's all about signal integrity.

https://en.wikipedia.org/wiki/Velocity_factor

That and the physical decoupling of information into another medium other than EM

Try running Cat cables on powerlines like Aerial Fibre

Pedantically, light is still EM.

But I think I understand what you mean.

The shape of individual EM waveforms is no longer relevant instead there are just buckets of got some or not.

I assume it is drawers.