hefferbub

6 ms·

1.
by hefferbub 2y ago
I know most people don’t believe this, but it is likely that electric cars have a good chance of becoming far cheaper than ICE cars over the coming 5-10 years. EVs are complex, but in ways that are much more subject to economies of scale. F
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by hefferbub 3y ago
Look at the work of Tony Seba, who has analyzed the properties of a possible fully-renewable grid. In his models, you over-provision PV and wind (doable because it is so cheap, and getting cheaper) so it can cover peak loads. Then during t
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by hefferbub 3y ago
Wow, so much willful misinformation. Let’s cover a few! - Steering: indeed the CT uses an innovative, triple-redundant steer by wire system. The steering wheel, which is a squared circle, not a yoke, turns 380 degrees lock to lock, so you
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by hefferbub 3y ago
So having memory on-die is revolutionary? Better tell Apple who has been doing it for years. And Tesla’s Dojo is already running processors and memory together at wafer scale, as are a number of startups. I love it when uninformed writers
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by hefferbub 3y ago
I think something missed in this discussion is the fact that an EV is so much simpler than an ICE vehicle* that costs will inevitably come down. Many people believe that decent models will be considerably cheaper than today’s Tercels, Civic
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by hefferbub 3y ago
SpaceX is well underway building their second orbital launch platform and tower at Cape Canaveral in Florida. My understanding is that Boca Chica will be a factory and development/testing site and Florida the primary launch location.
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by hefferbub 3y ago
Nearly all of the breathless doom mongering has been from one or two small environmental groups who opposed the plant from the start and who keep inventing objections to attempt to support their foregone conclusion. They use every possible
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by hefferbub 4y ago
13 years is immediate? Let’s please not have our future depend on building giant, fragile things that are obsolete technologically and financially before they are even completed. Wind and PV have some challenges, but they get online fast.
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by hefferbub 4y ago
And don’t forget, this was the “revolutionary” AP1 design that was supposed to fix all the bad things about the previous revolutionary designs.
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by hefferbub 4y ago
Great work Kody! Thanks. One thing I was hoping to see—-remove MS Word induced junk like “Smart quotes” and “smart apostrophes” and whatever else tends to blow up web text when importing or displaying.
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by hefferbub 4y ago
I live in a multi-unit residential coop community, and we have managed to install a 240v outlet in each of our 90 carports, and are adding more outlets in open parking areas by mounting them on simple fence-like structures. We use 240v cha
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by hefferbub 4y ago
I too wonder about the way good drivers anticipate circumstances and prepare themselves to respond. That might indeed be hard to replicate. But then I realized that detecting these kinds of patterns (kid chasing ball, car next to you that
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Can we have a less flamey discussion of self driving cars?
9 points by hefferbub 4y ago|31 comments
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by hefferbub 4y ago
I always find it amusing when the people who deify capitalism and claim the freedom of businesses to do whatever they damn well please start telling private businesses what they must or must not allow on their privately developed platforms.
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by hefferbub 4y ago
I have never seen a public school that teaches firearm safety (aside from a coach teaching a marksmanship team), and never heard anyone try to claim (until today) it is some kind of historical core curriculum under siege. But setting that a
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by hefferbub 5y ago
I wrote my first production program in COBOL back in 1983 at Hewlett-Packard. It basically took reports formatted for the multi-carbon “greenbar” paper that normally went to the big dot matrix printers and sent them instead to print on the
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by hefferbub 5y ago
Like most engineering problems, smart design and rigorous execution make a huge difference. Tesla understood that heat management is key to an EV, so they invested in designing a compact and elegant system (Google “octovalve”) to move heat
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by hefferbub 5y ago
I use this service for my whole family (5 adults) so to continue would cost me $30 per month forever. Sux. Moving email service is not such a big deal, but we have hundreds of Google Docs files to try to transfer. My research indicates th
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by hefferbub 5y ago
There’s a level of detail frequently missed when discussing this topic. Most manufacturers fill their cars with dozens of ECUs (electronic control unit) distributed throughout. Each of these needs a separate microcontroller and runs it’s o