🍞bcBread🍞

Im not actually a cartoon skeleton with goku hair🫶

@andyfang How is @Taskrabbit doing these days?

Introducing Dasher Tasks Dashers can now get paid to do general tasks. We think this will be huge for building the frontier of physical intelligence. Look forward to seeing where this goes!

@SenSanders Wait until the people find out about facebook…

I spoke to Anthropic’s AI agent Claude about AI collecting massive amounts of personal data and how that information is being used to violate our privacy rights. What an AI agent says about the dangers of AI is shocking and should wake us up.

@eliana_jordan Agents are the new “apps”

“Apps are dead.” I don’t buy it. People still want tools to: → remember → stay motivated → track things → make better decisions Demand is still there.

@PTrubey @SawyerMerritt I TRIED😂 apparently i triggered the X trolls though in doing so🤷‍♂️

@_bcbread @SawyerMerritt Ask intelligent questions, get intelligent answers 😉

WSJ: Tesla Finally Has Its First Semi-Truck and It’s Already a Hit With Truckers. "Truckers who drove it in pilot tests say they loved features including a centered driving position, faster charging and longer range for about $100,000 less than other battery-electric trucks. Angel Rodriguez, a 56-year-old truck driver for Hight Logistics in Long Beach, Calif., recently swapped out a 13-gear diesel truck for a Tesla Semi, which is automatic, for a one-month pilot test. “It’s just easier on your body. It’s less stressful because you’re not really having to engage the clutch and the stick shift.” Big F Transport employs five mechanics to service more than 40 diesel-powered rigs and a fleet of trailer chassis in Wilmington, Calif. “If we go all EV we will only need one [mechanic] to service chassis,” said Geovanny Melendez, the carrier’s VP of operations, who went to see the Semi earlier this month at a ride-and-drive event near the Port of Long Beach. Jennie Abarca, co-founder and CEO of King Fio Trucking in Long Beach, Calif., once worked as a truck dispatcher and her husband is a truck driver, so she knows all too well the toll a diesel engine takes on people’s lungs and hearing. She eventually wants to swap out King Fio’s 27 diesel trucks to create an all-electric fleet. King Fio already has 11 battery-electric trucks from Volvo and Nikola. But the company limits those trucks to shorter trips to and from local ports because they only have a range of about 225 miles. The Semi, by contrast, can travel 500 miles on a single charge, according to Tesla. For King Fio that means two or three round-trips a day from Long Beach to warehouses in the nearby Inland Empire or a single round-trip to Las Vegas. She has 20 Semis on order. “The Teslas change everything,” Abarca said. “It opens up a whole different type of delivery that I can make.”

@Zac09198 @tv_decisive @PTrubey @SawyerMerritt LFG🔥 i’ll take real experience over controlled testing anyday🫡

@_bcbread @tv_decisive @PTrubey @SawyerMerritt I towed an airstream with an electric G-Wagon. You would be amazed how the resistance/generator function works for slowing down. You can adjust it to extreme resistance so it is almost like hard braking just by letting off the gas pedal. I was totally sold on it’s effectiveness

@PTrubey @SawyerMerritt LFG🔥🔥🔥 thank you for actually explaining things intelligently🫡

Regenerative braking isn’t any harder on the electric motor/inverter than acceleration is. Under braking, the electric motor is used as an electric generator, and the braking energy created in the electric field around the motor is used to charge the rather large battery. There’s actually no unusual mechanical stress when doing normal braking including downhill. For example, Tesla demonstrated regen on Donner Pass (3–6% grades over ~30 miles with a full 82k lb load). The head of Semi stated they “didn’t have to use the friction brakes at all,” and at the bottom “the brakes were cold at the brake check.” Estimates are that the regen can recapture 760-800 kW of power under full regen. A loaded Semi on a 6% downgrade at highway speeds generates ~500–600 kW from gravity alone, well within the ~760+ kW regen capacity. Energy is recovered to the battery (boosting overall efficiency to the rated 1.7 kWh/mile), and brake wear is virtually eliminated on most routes. This is one reason why an EV truck can be surprisingly efficient. On a normal truck, every single braking action is wasted energy. On Tesla semi, all that energy of a huge load coming to a stop is recaptured at around an 80% efficiency recapture.

@bozotheclone @SawyerMerritt Totally👍

@_bcbread @SawyerMerritt You just simply dont understand the tech. Its okay.

@valdagher @tv_decisive @PTrubey @SawyerMerritt Thats why i said “equivalent”. Digitally giving it more torque at lower rpms

@_bcbread @tv_decisive @PTrubey @SawyerMerritt There is no gear ratio. Think RC car electric motor... But bigger.

@MattHug32648072 @C604Wt @SawyerMerritt mmmmm….whisper it again in my ear

@_bcbread @C604Wt @SawyerMerritt Dumbass

@tv_decisive @PTrubey @SawyerMerritt Can you “lock” it into a lower torque setting? Like a cruise control but specifically dictate the equivalent of gear ratio?

Easy answer: The motor(s) in the Tesla Semi are bigger and made of more durable materials than that of a Tesla car. Thus meaning it can handle bigger and heavier loads. When braking in a Tesla (same for semi) it does what’s called “Regenerative Braking” which uses the stopping force of the motor(s) to slow the vehicle down. Thus taking pressure off the break pads and rotors, and it doesnt split it 50/50, the motors slow the vehicle down first, then friction braking only when needed (like heavy load down hill or hard braking to stop quickly).

@AlexHuskey6 @SawyerMerritt Teach a man to fish…

@_bcbread @SawyerMerritt Where does your endless supply of red herrings come from?

@dustin_finzer @SawyerMerritt Uphill no question. Downhill in slick conditions being able to lock in a low gear and “coast” is vital

@_bcbread @SawyerMerritt A couple of factors make them superior managing a load on a grade, up or down. Regenerative braking is superior to an engine brake at all speeds. They still have normal service brakes. Multi-phase electric motors make peak torque at 0 RPM, so getting a load moving is easier.

@AlexHuskey6 @SawyerMerritt Where do you people with a single post and 110 followers come from? Asking for a friend.

@_bcbread @SawyerMerritt It’s easy: Tesla motors have all the torque, all the time. No tranny needed. Regenerative braking is like a Jake Brake that makes fuel.

@bozotheclone @SawyerMerritt Good thing the building has excellent traction and the air isnt too icy

@_bcbread @SawyerMerritt Dude, AI lands a 20 story building falling from space. Pretty sure trucks are a super simply physics problem for AI.

@LarperCletus @BillEng28345 @SawyerMerritt Interesting🤔 hopefully they are at least testing some of these fringe cases

@_bcbread @BillEng28345 @SawyerMerritt If all motors somehow fail at once (there are 3 and the chances they all fail at the same time are probably one in billions), you just use the brakes. They are already cool because they are rarely used during normal driving. It has much more redundancy than a traditional truck.

@C604Wt @MattHug32648072 @SawyerMerritt Didn’t mean to offend your husband man🫶 glad you’re here to defend him

@_bcbread @MattHug32648072 @SawyerMerritt Not too different in quality to your posts.

@mickificki7 @JeffreyBleyl @SawyerMerritt Fantastic

@_bcbread @JeffreyBleyl @SawyerMerritt If I recall correctly the prototypes were doing 0-60 in 5 sec. It’s freaking fast.

@bozotheclone @SawyerMerritt The most advanced ai in the world can’t eliminate the physics involved with a full load going downhill

@_bcbread @SawyerMerritt Yes, I'm sure they missed that in the development process. The advanced AI in the semi can probably do this without the need of human intervention. The sad thing is that we're not too far from not needing drivers in these trucks.

@LarperCletus @BillEng28345 @SawyerMerritt And in case of failure?

@_bcbread @BillEng28345 @SawyerMerritt They are not actually brakes. It’s using the electric motors to charge the battery and provide braking. Essentially no wear and tear.

@MattHug32648072 @SawyerMerritt Excellent contribution Matt. Glad you’re here👍

@_bcbread @SawyerMerritt Dumbass