trainsarebetter (u/trainsarebetter)

trainsarebetter commented on How much do electric car batteries degrade? sustainabilitybynumbers.c... · Posted by u/xnx

does the newer one use a heat pump?

Oh yes, the entire heating/cooling system is quite a beautiful bit of engineering. a very elegantly designed “supper manifold” and heat exchanges that can push or pull heat from any device to another in the vehicle. They don’t even have heating elements anymore, they just run the motor less efficiently to produce more heat!

trainsarebetter commented on Countrywide natural experiment links built environment to physical activity nature.com/articles/s4158... · Posted by u/Anon84

potato3732842 · 11 days ago

It's not like those things weren't all getting done before. They just didn't generate commerce and didn't generate GDP. GDP goes up because of commodifying all those things. It's not clear if it's actually more efficient this way though.

trainsarebetter · 10 days ago

That’s my point really, we just commercialized everything, and introduced a bunch of extra steps. Could argue it enabled us to scale and handle very large amounts of people residing together.

trainsarebetter commented on Countrywide natural experiment links built environment to physical activity nature.com/articles/s4158... · Posted by u/Anon84

trainsarebetter · 12 days ago

It’s funny how as we increase a nations gdp, and general wealth, we commodify everything. day care, dog walkers, psychical activity, etc and then we have to go back and do all this market research and artificially recreate what was holistic about the more rural way of life.

There really is no free lunch!

trainsarebetter commented on Mark Zuckerberg's vision for humanity is terrifying sfgate.com/tech/article/m... · Posted by u/SirLJ

wbobbjns · 13 days ago

Staying off of social media is the best idea ever, followed by not watching TV/movies, not reading the news, and staying off of... oh, I guess I’m on HN.

trainsarebetter · 13 days ago

deleting fb and instagram, essentially when I was a teenager (which I saw early on was contributing to my depression) was best decision I every made. I moved to a small town from the big city and learned to socialize with people. Coming back old friends comment of how outgoing and easy it is for me to connect with people.

trainsarebetter commented on Enough AI copilots, we need AI HUDs geoffreylitt.com/2025/07/... · Posted by u/walterbell

stavros · a month ago

If we have HUDs that can handle aerial combat, why don't we have HUDs that can handle racing?

trainsarebetter · a month ago

this is true, so we just lack the incentives to make them? a human copilot is just a core part of the sport?

trainsarebetter commented on Enough AI copilots, we need AI HUDs geoffreylitt.com/2025/07/... · Posted by u/walterbell

imglorp · a month ago

Rally co-driver/navigator seems reasonable, given its augmented senses like gps and radar.

One part "90 degree right in 200m" and one part "OMG, sheep, dodge left".

trainsarebetter · a month ago

This is I’d say partially because we don’t have a HUD that can handle the bandwidth and pace of data required for rally. Overlaying a visualization of the turns ahead would be much better than a copilot for sure

trainsarebetter commented on Return of wolves to Yellowstone has led to a surge in aspen trees livescience.com/animals/l... · Posted by u/geox

BurningFrog · a month ago

One point I rarely see made:

When you "destroy" an ecosystem, a new one will take its place. The remaining animals and plants will converge on a new balanced state.

The ecosystems we admire today are often that new balance after humans destroyed the natural one.

trainsarebetter · a month ago

This is pretty naive take. We have turned eras of lush forests into essentially deserts and killed water sheds. These things don’t default back to a thriving ecosystem. Lots of the time they are just dead. Pre tree planting, after clear cutting, there’s a lot of “forests” in bc that are just one canopy hemlock swaths. They need to be thinned and diversified because the are essentially “dead” forests. A lot of work needs to be put into these areas, as the water sheds are falling apart and dying as a result.

trainsarebetter commented on How Tesla is proving doubters right on why its robotaxi service cannot scale aol.com/elon-gambling-tes... · Posted by u/Bluestein

lvl155 · a month ago

Do you not see my point? How about traffic lights? Or street lights. It’s the same thing. You make it sound like things can’t improve from status quo. Let me guess you are a Java dev.

trainsarebetter · a month ago

Good design is good design. Road dosnt need to be anything more than a path with consistent surface texture.

If we want to develop general purpose machines, then we can rely on placing external sensors in the environment

trainsarebetter commented on How Tesla is proving doubters right on why its robotaxi service cannot scale aol.com/elon-gambling-tes... · Posted by u/Bluestein

lvl155 · a month ago

Based on that view, maybe we shouldn’t have public roads at all. Go back to scavenging for food.

trainsarebetter · a month ago

It’s not binary. You ran way too far. having simple, generalized infrastructure that’s repair ability can be democratized, and having a free market of what can use said infrastructure is robust. Road infrastructure cost a lot of money to maintain, adding more technology to maintain makes no sense

trainsarebetter commented on How Tesla is proving doubters right on why its robotaxi service cannot scale aol.com/elon-gambling-tes... · Posted by u/Bluestein

lvl155 · a month ago

OT, but we need smart roads before we get a reliable robotaxi. You need lidar + road sensors embedded into the road. You basically have multiple sensors covering a section of the road that constantly updates specific to that section. And you have robotaxis pinging these stations wirelessly. When disconnected, autonomous feature also disengages. You don’t need to install a ton of sensors on every cars.

trainsarebetter · a month ago

Nonono. Externalizing the part of the compute is bad idea. increasing the cost and complexity of a socialized infrastructure is bad as now it relies on external reliability, we can barely maintain roads in there current form

u/trainsarebetter

KarmaCake day359February 15, 2022View Original