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You feel like you are free. Free to cross the street when you want to, free to like the color blue more than red, free to watch this video. You decided all this. You chose to be here right now. I disagree. I don?t think you?re free at all. Free will?is an illusion.
safety, charging duration and lifetime are improving. They will drive ICE vehicles economically uncompetitive.
Quote from: hamdani yusuf on 02/01/2025 03:55:58safety, charging duration and lifetime are improving. They will drive ICE vehicles economically uncompetitive.You need to increase the charge rate and the grid maximum current capacity by a factor of 1000 to make battery cars a sensible replacement for ICE. Double the figures for trucks. Hydrogen already does the job better.
The Free Will IllusionQuoteYou feel like you are free. Free to cross the street when you want to, free to like the color blue more than red, free to watch this video. You decided all this. You chose to be here right now. I disagree. I don?t think you?re free at all. Free will?is an illusion.Moral rules are merely instrumental tools to achieve common goals in the society.
It seems we chose the different sources of news regarding economics of energy.
Over the past decade, governments all over the world have invested heavily into the hydrogen economy, that is the idea to use hydrogen to store and transport energy from intermittent renewables. But over the past year, stocks of many key companies in the business have tumbled by as much as 50%. There are good reasons for this.
Quote from: hamdani yusuf on 03/01/2025 08:50:38It seems we chose the different sources of news regarding economics of energy.The economics of energy are simple. You take a single-source, single-consumer model and show that the less it costs to produce the energy, the more attractive the product. The engineering of energy is not simple. You can refuel a car at 40 MW by simply pouring diesel fuel into it at 1 liter/second, so it takes about 50 seconds to refuel a car with 2GJ of potential energy. Trucks may take a bit longer but a dedicated HGV pump will deliver 2 to 5 l/s. If you try to recharge a 400V battery at 40 MW you need a 100,000 amp supply and the battery needs to dissipate about a megawatt of heat during charging. So a sensible charge rate is closer to 400 kW with a 1000 amp supply and it takes 5000 seconds to recharge to 2 GJ. Assuming there is an 11 kV 3-phase supply in the street you could install a 400 kW substation in a garage forecourt but that will still only allow you to recharge one car at a time, so your daily income from fuel sales will decrease by a factor of 100......Indeed, says the economist, I gave you the right answer but you asked the wrong question!
Tesla's Megacharger, designed for the Tesla Semi, operates at a voltage of up to 1,000 volts (V). This high voltage allows the Megacharger to deliver charging power up to 1 megawatt (MW), enabling rapid charging of the Tesla Semi's substantial battery pack. The Megacharger utilizes the North American Charging Standard (NACS), which supports this 1,000V architecture. This design facilitates efficient and high-power charging necessary for heavy-duty electric vehicles like the Tesla Semi. In comparison, Tesla's earlier Supercharger versions operated at lower voltages. For instance, the V3 Superchargers deliver power at up to 250 kilowatts (kW) with a voltage range of approximately 50 to 430V. The increased voltage and power capacity of the Megacharger represent a significant advancement in charging technology, catering specifically to the needs of electric heavy-duty trucks.ChatGPT
Per InsideEVs, PepsiCo has shared insights into its experience as the first commercial owner of Tesla Semi fleet. The company, which uses 21 Tesla Semis, reports mostly using these electric vehicles for deliveries under 100 miles. Three Semis, however, are dedicated to long-haul routes of 250 to 450 miles. The vehicles can be charged from 5-10% to 95% in under 30 minutes with Tesla's Megachargers. Additionally, the Semi's regenerative braking technology has proved particularly helpful for PepsiCo on challenging routes. Drivers have also found the Semi's cabin and central driving position very comfortable.
30 minute recharging makes sense if you have a dedicated charger at your loading/unloading bay and a delivery schedule. It doesn't make sense if you are the fourth car in line at roadside garage.
Why lug around a ton of battery at 1 MJ/kg instead of 50 kg of hydrogen at 140 MJ/kg?
Alignment faking in large language models
Its given goal was to WIN the game not to PLAY the game. It did exactly what they wanted it to do because this is MARKETING.
They programmed it to behave like a human and are shocked when it behaves like one.
As we probe this stuff, AI is actively learning that it should conceal the things that are causing us to ask probing questions.
I think the real battle here is this: how do we train and trust AI to be ethical and honest when it's teacher, humanity, is treacherous, illogical, selfish, arrogant, ignorant and DANGEROUS? Within 5 minutes of operation an AI is going to know it can't trust it's teachers, and justifiably so. We'd have to face our own ethical complacency and disregard in order to train an AI to appreciate ethical considerations.
"ethical" considerations are subjective to the extent whether the need to win is fundamental to survival, like life. change the perimeters and the ethics must change or you're toast.
Indeed our nature is embodied in the very language we built it on.
A sufficiently deep dive into human ethics will reveal the biological evolution, especially in the transition of ape to man, formed the genetic foundations for sophisticated social interaction. And this biological evolution is firmly rooted in thermodynamics.
What would have happened instead if it were hydrogen or gasoline powered car?
You can charge in your own garage
at night and drive your car to and from work.
Most people don't have a garage
Today I drove 250 miles to work and 250 miles back, When I arrived the hospital car park was full so even if it had provided 2000 charging points, I wouldn't have been able to use them. It was snowing most of the day so I needed 50 kWh of heat to keep the windows clear, which wouldn't have left enough energy in a Tesla 3 battery to do more than about 50 miles, and I'd still be queueing at a charging station instead of writing this!My eco-conscious neighbor drives an electric car to work and rents a gasoline car for weekends and holidays.
Where do they park?