AA5B @ AA5B @lemmy.world

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6,105

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2 yr. ago

Lidar has strengths that complement where video has weaknesses. That seems like a good thing. However it is bulky and expensive, and not yet produced at scale. Those are bad things. Whether it really makes a difference in simplifying the machine learning, only those developers know. You have to balance the pluses and minuses, and just because one company came up with something different, doesn’t mean it’s wrong.

Maybe it won’t work without lidar but maybe it will - in the meantime Tesla has saved like $1,000/car times however many million they produce. If they succeed, then they have a solid cost and scalability advantage

The deciding point is if someone does develop general self-driving. Will those who are behind be able to swallow their pride and modify their approach?

We’re on our way to more than a three-degree temperature rise by the end of this century.

Fwiw, I recently saw a projection that we’re currently on a 2.9° path

We passed the seventh boundary this year, and we’re in the extreme danger zone.

But that’s much scarier. These boundaries weren’t defined back when we thought it was mainly about temperature

No. Window retracting on door opening is no different than other cars with frameless windows. Most lowering the window may damage the weatherstripping but is no impediment to door opening.

True that the door latch itself is just a solenoid. I actually forgot the the outside handles don’t do anything but give you something to pull on.

The worst part of the manual door release is that it’s different on each model. For mine, the front door manual release is easily accessible to the point I have to tell people not to use it. Back door is a problem though

At ideal conditions. As the temperature difference is greater, the efficiency goes down. So right when you need heat the most, gas is still at 90+% efficiency while heat pumps are closer to or under 200%.

Then you have to look at capacity. It can be expensive sizing for the greater temp differences when it usually isn’t. If you have a heat pump that can be 400% efficient, do you really want to pay for quadruple the capacity so that even when it’s at 100% efficiency it still puts out enough heat? No one can afford that

Or just a snow covered road

They don’t though. Waymo runs a few pilots in a few specific geolocked locations with essentially hand built cars at a huge loss. They also have human remote supervisions. They do seem fairly successful and maybe their slow careful rollout will eventually be at scale in the areas that need it most. Hopefully it will work.

While it’s easy to argue Tesla hasn’t had those successes yet, they do have the “at scale” part down and are already profitable on the vehicles. They are close enough to self-driving them at they’re willing to try their own pilots with human intervention. If they succeed, they already have the scaling up done and are profitable on hardware so will quickly surpass other competitors.

I like that different companies are taking different approaches, so we have competition. May the best technology succeed!

I loved the comic when I was a kid: I’ll always give f4 another chance.

Actually, even I was skeptical of yet another attempt, but the retro, campy aesthetic of the preview won me over that they’re at least trying something different.

Sure but if you make that argument, even relatively dumb cars have that as well. At least antilock brakes have been mandatory for a few years (in the US) and traction control might be as well. Both lead to immediate adjustments in driving, more quickly than any human can react.

More automated cars must have some equivalent feedback on balance, sharpness of turns. I don’t know what it is, but they generally execute smooth comfortable turns.

Do people really get these false alerts? I don’t recall ever getting one that wasn’t local

What’s your goal in using fake info? If it’s general privacy, it’s easy enough to register where your info is private to the registrar

I mean it’s all true:

• humans drive based on vision alone
• moving to one type of sensor simplifies the ai
• lidar has been much bulkier, much more expensive than other sensors.

Most importantly, since no one has self driving yet, it’s premature to talk about that as a mistake. Let it fail or succeed on its merits. Let other self-driving attempts fail or succeed on their merits.

In this crash, part of the blame was on retracting handles on the outside, not the interior locks. If the handle is retracted, it’s tough to open the door from the outside.

• model s has electrically presented handles. The car has to be somewhat functional for the handles to extend …. I haven’t heard of extend on emergency or extend on power lost, or any other failsafe
• model 3/y door handles are not electrical. You have to press on one end to extend the other. You may or may not like them, but at least they don’t have that failure case of what happens when the car loses power

Yeah but I don’t know how this happened in the first place, we’ve had decades of horse running screaming out of that barn, decades of smelling the smoke from that dumpster fire, my entire life of what a horrible person he is and why is he still in the news. Yeah, it’s decades late to close that barn door, decades late to suffocate that fire. Mango Mussolini is the very definition of failing his way upward. There was never a good reason for him to lead us out of a paper bag, and it kept getting worse

I can only assume that insipid tv show he paid for to rehabilitate his image actually worked. Do people actually believe reality tv? Did everyone forget the decades of evidence before then? Did you actually pay attention to the script?

Last night I had a three hour call with my conservative brother where he explained an entirely different world than what I live in. Many of their choices are not as horrible if you accept their alternate facts. That’s the real problem, alternate reality.

Although here’s a wholesome tale for the Lemmings …… he was complaining about the parents and grandparents, the boomers in my family, believing in all this “woke nonsense”. I don’t know how he thinks I’d sympathize with his reality

Combine them with fracking, use them as “tampons” to plug the wells, sop up the pollution

Those stats might affect the adoration of his groupies, and how many are re-elected.

Most horribly of all, we have Vance thinking he can step into the big orange footprints to be ordained next. We can’t have that weasel elected. It would be more of the same but more evil, less self-centered gibberish

I’ve been looking at that decision. My furnace is well beyond its expected life and I’d like to replace it before it dies so it’s not an emergency. I’ve looked at heat pumps and really want to make that choice. The incentives help with the initial cost, at least for a couple more months.

But then it comes down to gas is cheaper than electricity. If electricity is twice the cost per unit of energy, is it really sufficient for the heat pump to be twice as efficient? How can I rationalize the choice that is not only more expensive to install but more expensive to run?

And the answer is not sinking yet more money into also doing solar. My house is mostly shaded, and I’m not killing treees just to make this mess work together

Definitely part of the answer needs to be adjusting subsidies to bring the cost of electricity per unit of energy closer to the cost of gas, or maybe incorporating. The externalized costs would actually be sufficient

If we had just moved ahead with solar heat and hot water, or even solar panels, back when President Carter was trying to encourage it, we would already be moved away from fossil fuels

My interest in renewables, in ecology, in recycling, was all from growing up with that. But how did we let fossil fuel companies take over the conversation, guide our choices down the road to their profits at our cost?

I’ll agree with we should have started 40 years ago. We knew we should have and we did have sufficient technology to take other paths.

But I’ll disagree on whether we have the technology now. There was a recent post on Lemmy that in a sunny place like Las Vegas, you could replace 97% of energy generation with renewables and batteries. Cheaper. Not just that you can but that it’s cheaper. We have the technology.

The challenge is always to bring the cost down. We do have technology to create aviation fuel from green sources. We do have several options for fueling shipping that we know how to do. Even if we’re just making ammonia or hydrogen or green diesel, that is a huge step forward that we have the technology for. The problem is we don’t yet have a compelling economic case to (especially since climate change is externalized, not counted as a cost), nor anyone with the fortitude to make it so