They call it jailbreak because this is an issue of freedom

I support your position and the right to repair, but that’s not the origin of the term jailbreak in the context of computing.

The term jailbreaking predates its modern understanding relating to smartphones, and dates back to the introduction of “protected modes” in early 80s CPU designs such as the intel 80286.

With the introduction of protected mode it became possible for programs to run in isolated memory spaces where they are unable to impact other programs running on the same CPU. These programs were said to be running “in a jail” that limited their access to the rest of the computer. A software exploit that allowed a program running inside the “jail” to gain root access / run code outside of protected mode was a “jailbreak”.

The first “jailbreak” for iOS allowed users to run software applications outside of protected modes and instead run in the kernel.

But as is common for the English language, jailbreak became to be synonymous with freedom from manufacture imposed limits and now has this additional definition.

This also leads to stupid rules like you can’t change your password more than once a day, to prevent someone from changing their password 5 times and then changing it back to what it was before.

It was a UPS I bought on Amazon.

It arrived damaged in the box, almost certainly because the driver dropped it.

My experience with Amazon customer service was umm… fun.

1. click the request return button.

This item is not returnable.

2. call customer service

Them: “This item is not returnable”

Me “it arrived damaged”

Them: “We’ll send you an email, reply to it with evidence of damage”

3. reply to email sending pictures with close up of the damage

Please send the email from the same address associated with the Amazon account

4. resend reply from my other email

The pictures you sent are in the wrong format please resend as jpeg or pdf

5. convert the images and resend

The pictures you sent do not show the entire product

6. take new pictures from farther away

Please send pictures that clearly show the damage

😡

It is, but lead based chemistries tend to wear out and need replacing a lot sooner than lithium ion.

You’re core idea is correct though, there’s a lot of battery techs that are cheaper / better when size and weight are irrelevant.

Whoever wrote that article is playing fast and loose with the definition of exponential.

Here’s the actual data of global electricity source on a log scale for the past ~15 years

Notice that the line for both wind and solar is inflecting to the right. If it was exponential it would be straight.

The time between each doubling of output is increasing.

It’s close, but not enough to be exponential growth.

It was exponential for a while but it’s slowing down in the last decade or two.

It’s not an exponential curve. It’s slower than that.

It’s more than linear; we are adding more capacity each year than the year before. But added capacity per year as a percentage of the previous years total is a decreasing.

If it was exponential the growth would be a straight(ish) line when plotted on a logarithmic scale… it’s not. On a log scale the line inflects.

Such an incredibly misleading article.

1 GW of nuclear capacity generates several times more electricity than 1 GW of PV capacity.

Nuclear power plants run at almost full capacity pretty much 24/7/365. With the occasional shutdown every few years for maintenance and to replace the fuel rods.

PVs only generate electricity during the day, and only hit their maximum capacity under ideal conditions. The average output of PVs is 15-25% of their capacity.

Globally we generate more electricity from nuclear than we do from all PVs together.

At the typical sizes we’re building them you need dozens of PV farms to match the energy output of a single nuclear reactor.

In high school one of my classmates was named Benjamin Dover.

Also had a classmate named Ma Deek.

We call it the “Mens” category, but for all intents and purposes it is the same as an “open to all genders” category.

Female athletes don’t compete in it because they’re physically not strong enough to even qualify to compete in it at the world level. The gender they identify as or were assigned at birth is irrelevant. There’s no genetic testing requirement to compete at the men’s level.

In almost every sport, the world record performance from a women isn’t even good enough to meet the minimum bar for quality to compete in the men’s competitions at the world level.

Even sports like diving where you’re judged more than measured, the male athletes strength makes it possible for them to do things the female athletes simply can’t.

There was a time when they only was open to all competition, adding a protected women’s only category was to make it fair for women. And then we started calling the open category the men’s category.

We could call it the open category and the low-T category instead, and it would have the exact same participants in each.

Found the Canadian.

I got a 2400 baud modem and thought it was so cool that I didn’t need to use an acoustic coupler

The fastest a woman has ever run the 100m dash is 10.49 seconds.

The Olympic qualifying time, that all runners needed to beat to even complete in men’s 100m dash this year was 10.00 seconds.

If we didn’t have a women’s division, there couldn’t be women in sports.

It depends on the jurisdiction, but in most cases if you have a salaried position with say 3 weeks of PTO but you only take 2 weeks of it. The employer is usually required to pay you over and above your salary for working during your “vacation time”.

If there’s an unlimited PTO policy, they don’t have an obligation to pay you extra for working during vacation time.

It’s a lie.

By making it “unlimited” they don’t need to pay you out of you don’t use all of PTO days.

If you use it more than they think you’ve earned you get terminated.

Employees end up afraid of taking their PTO days and typically end up taking even less time off than if they knew there was a expectation of 3 weeks or whatever.

My favourite thing ever seen in source code was a comment that read “this code is temporary” with developer initials and a date that was at the time about 5 years ago.

Followed by another dated comment from about 3 years later that read “Temporary my ass”

😂

Tesla’s biggest issue is Musk.

Tesla held a commanding lead over the other automakers in the self-driving segment a few years ago. Now they’ve all mostly caught up thanks to Musk’s unhinged firings. Tesla lost some of its best talent for no other reason than not wanting to work for an egomaniacal billionaire nut job.

Tesla needs to fire Musk before he runs it into the ground just like he’s done to Twitter.

Genuinely curious, what new features did that updated firmware have that were valuable to you?

“Green Hydrogen” is made by using electricity to split water into hydrogen and oxygen. There’re no carbon emissions in that process, but to be truly “green” the electricity must come from a carbon free source like wind, solar, nuclear, or hydroelectric.

The process of electricity to hydrogen to compressed hydrogen to fuel cell to electricity is about half as energy efficient as electricity to li ion battery to electricity. As a form of electricity storage green hydrogen is significantly less efficient than batteries.

Green hydrogen only makes sense as a fuel in situations where batteries are not feasible.

And right now making green hydrogen at all does not make sense because if you build a new low carbon source of electricity it will make a larger impact if you use it to displace fossil fuel based electricity generation rather than using it to create green hydrogen.

Your math checks out.

Charging a 600 mi battery in 9 minutes would require a charging station that can output somewhere north of 1.2 MW.

We need major upgrades to the electrical grid as well as doubling our electricity generation capacity for charging stations and vehicles like that to be common place.

This is the trolley problem.

The trolley problem is a series of thought experiments that should be morally equivalent. In all variations, the reader can choose to take an action that will directly result in the death of an innocent person who was otherwise ‘safe’, or do nothing and allow a larger group of people to die, and ask what is the morally correct choice.

There’s no right answer to the trolley problem. The interesting take away is that what most people agree is the morally correct answer depends how the problem is framed.

When the situation is framed as “you’re deciding between one person dying and many people dying” most people will agree the morally correct choice is the one where the fewest people die.

But when the situation is framed as “are you justified in murdering an innocent person to save many” most people agree the morally correct answer is no.

There’s even one variation where is is considered by most morally correct to murder one person to save many, if the person you’re murdering is responsible for putting the larger group in harms way in the first place.