Tesla owners are overwhelmingly men, and the most common occupations are engineer, software engineer, and manager of operations, one study found.

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-2 points

Are you seriously joking? A transistor today is much smaller and faster than what existed in 1947. That is what is driving Moore’s law.

Batteries evolve only very slowly, and run into hard physical limits at every step. As a result, BEVs are very expensive and have major downsides like weight, long recharge times, etc.

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4 points

@Hypx Yes transistors are smaller and faster, that’s the literal definition of Moore’s Law. But a transistor today is a smaller, faster version of the exact same technology as the first transistor, applying a small signal to pass current between doped semiconductor junctions, the only major difference being changing the semiconductor from germanium to silicon.
Batteries, however, are fundamentally different from when they were first invented. Yes, it’s still storing electrical energy as chemical energy, but the chemistry has changed so much since the first batteries. The word “polymer” wouldn’t even exist for another 20 odd years. And new technology is constantly being discovered, such as solid state batteries or supercapacitors.
And if you want to talk about physical limits, Moore’s Law is essentially dead. We’re nearing a point where you’d have to split atoms to make a smaller transistor. Batteries are limited by their chemical makeup, transistors are limited by the laws of physics.

@L4s @Catch42

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-2 points

That’s ridiculous. You basically admitted that we switched from germanium to silicon, but that this apparently doesn’t count as a difference.

Not to mention that this is massively off-topic. The point is that batteries do not improve as fast as transistors did in the 1990s. Hence why an analogy is wrong.

And if you are aware that Moore’s law is (more or less) dead today, then you should understand the problem that batteries are facing. They too are hitting hard physical limits. You talk of solid state batteries but they are nowhere to be found right now. Clearly, this is a hard problem and future batteries will not magically be far superior.

But ultimately, there are other green ideas not called the BEV. Including other types of EVs. This is why I try to make it clear that I am talking about BEVs specific. Not EVs in general. Once other people become aware of this fact, it will become much clearer that the BEV is a fad. It is an expensive and very limited idea. It is arguably an idea stuck in the mid-2000s, and its advocates have simply failed to move on.

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4 points

I think the point that is counter to yours is that we are nowhere near the fundamental limits of energy density for batteries. It’s probable we are near a fundamental limit for LiPo, but the point is that battery tech improves by changing technologies/chemistries. BEVs couldn’t exist at all when the best rechargeable battery tech was lead-acid, but were enabled by LiPo. Theres most likely a type of battery you can’t even imagine that has yet to be invented that could store >10x or more energy than current LiPo per unit cost or mass.

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