John Timmer's Avatar

John Timmer

@jtimmer.bsky.social

Ars Technica's science editor. Various other things that are far less interesting. Check my author profile on Ars for my email. jtimmer.95 on Signal.

4,946 Followers  |  334 Following  |  1,389 Posts  |  Joined: 24.05.2023  |  2.3374

Latest posts by jtimmer.bsky.social on Bluesky

As an ex-biologist, I feel fairly confident in saying there's no obvious way to do that ever.

09.12.2025 13:42 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Judge in the case that rejects the admin's moratorium on wind power permitting drops this beauty: "Whatever level of explanation is required when deviating from longstanding agency practice, this is not it."

Also accuses admin's lawyers of "tilting at windmills".

Coverage tomorrow.

09.12.2025 03:26 โ€” ๐Ÿ‘ 16    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

If Nuzzi is a post-truth antivaxxer, she should say so.

If she isnโ€™t, she should say so.

But you donโ€™t get to work hard to elevate RFK Jr and then just gloss over what he has done.

Certainly not in your memoir that is purportedly about what you learned from the whole ideal.

09.12.2025 02:04 โ€” ๐Ÿ‘ 201    ๐Ÿ” 10    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 1

"The party is the state" coming from the people who somehow think they're anti-communists.

09.12.2025 00:27 โ€” ๐Ÿ‘ 28    ๐Ÿ” 11    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Shorter @mattyglesias.bsky.social here: I'm going to weaponize my lack of understanding of a complex topic to enable me to misinterpret the motives of everyone who does understand it and try to make them all look bad.

08.12.2025 22:25 โ€” ๐Ÿ‘ 8    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I liked it because it didn't require much thought, meaning you could be doing useful work and thinking about why you were doing the work at the same time.

08.12.2025 22:08 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

What skill did you master that you will never, ever use again?

Cutting sections on a cryotome.

08.12.2025 14:40 โ€” ๐Ÿ‘ 8    ๐Ÿ” 0    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 1

I'd like to think that I grew up at a time where, if you said something that made it clear you were a complete dipshit, there'd be consequences of some sort, like people no longer allowing you to occupy positions of consequence.

If that ever was the case, it's over now.

07.12.2025 17:21 โ€” ๐Ÿ‘ 13    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
One mile on a bike is a $.42 economic gain to society, one mile driving is a $.20 loss Copenhagen, the bicycle-friendliest place on the planet, publishes a biannual Bicycle Account, and buried in its pages is a rather astonishing fact.

โ€œOne mile on a bike is a $.42 economic gain to society, one mile driving is a $.20 loss.โ€

โ€œWhich means that Copenhagen, a city of 1.2 million people, saves $357 million a year on health costs because something like 80% of its population commutes by bike.โ€ #CityMakingMath

Some costs arenโ€™t costs.

21.11.2025 00:40 โ€” ๐Ÿ‘ 569    ๐Ÿ” 236    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 17

In any case, part of growing up involves recognizing the things about your role models that either aren't good or a good fit for you, and choosing your own path. Which makes the whole mannosphere thing a failure to grow up (along with everything else).

07.12.2025 02:50 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Without evidence, RFK Jr.โ€™s vaccine panel tosses hep B vaccine recommendation There is no data supporting a delay and no evidence of harm from a birth dose.

We're now living in a world where the Centers for Disease Control are making it more difficult to control disease.

The number of agencies that will need top-to-bottom reform when Trump leaves office is going to be a massive challenge to overcome for whoever follows him.

06.12.2025 16:09 โ€” ๐Ÿ‘ 32    ๐Ÿ” 10    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

So far at least, attempts to use the legal system to do that have fallen flat. But people are going to keep trying, so I'm intrigued when I see novel approaches like this.

05.12.2025 15:24 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Homeowners Sue Oil Companies as Climate Damage Drives up Insurance Rates - Inside Climate News The class-action lawsuit is the first of its kind to target Big Oil over rising home insurance costs.

Interesting attempt to make someone pay for the externalities that are being spread across society.

05.12.2025 15:07 โ€” ๐Ÿ‘ 7    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

If we renamed Puerto Rico "Trumplandia", he'd make it a state tomorrow.

04.12.2025 22:20 โ€” ๐Ÿ‘ 6    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

The most recent two Republican administrations made torture and now war crimes/murder official policy. And, as an American citizen, these actions have been done it in my name.

04.12.2025 16:48 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I'm old enough to remember sitting in a 1970s station wagon as my mother took her place in a line of cars waiting to buy rationed gasoline.

That era ended for very good reasons.

04.12.2025 15:37 โ€” ๐Ÿ‘ 11    ๐Ÿ” 5    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

At a time where most outlets are delicately avoiding naming things like racism, war crimes, and unconstitutional actions, huge props to Ars' @bethmariem.bsky.social for calling it like it actually is.

04.12.2025 00:46 โ€” ๐Ÿ‘ 48    ๐Ÿ” 10    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The blatant racism really needs to be front page news everywhere tomorrow.

04.12.2025 00:15 โ€” ๐Ÿ‘ 7    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

This, to me, sounds right. In my experience, if you know the material, 90+% of the time you have no problems finishing within the allotted time. Having more time only helps in those edge cases where the exams are poorly structured.

Having more time won't help those who don't know the material.

03.12.2025 14:25 โ€” ๐Ÿ‘ 9    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Maybe they should just realistically show people driving around frustrated for 45 minutes while searching for a parking spot.

03.12.2025 12:30 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Waiting for all the gamergate folks who supposedly cared about ethics in journalism to notice the whole Nuzzi fiasco.

02.12.2025 22:52 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The deck here may be Axios' finest work to date.

02.12.2025 22:48 โ€” ๐Ÿ‘ 17    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Every major newspaper should give the blatant racism front page treatment tomorrow. But they won't.

02.12.2025 19:55 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Probably says a lot about my musical tastes, but I think The Kink's Father Christmas is my favorite secular, and I love Oh Come all Ye Faithful in part because of Bad Religion's cover of it.

01.12.2025 16:25 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

They're in the title game because... Berkeley beat SMU, which illustrates your point nicely.

30.11.2025 15:18 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Nobody should be putting Mullin on TV precisely because they know he's going to say stupid, inflammatory shit like this. But he keeps getting trotted out because someone thinks that stupid inflammatory shit makes for great TV.

30.11.2025 15:07 โ€” ๐Ÿ‘ 9    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Every single congressional Democrat needs to be out there, right now, insisting that Pete Hegseth resign right now and announcing that he will be held accountable for committing war crimes.

If you do not demand accountability here and now, they will only become more emboldened.

28.11.2025 19:19 โ€” ๐Ÿ‘ 11026    ๐Ÿ” 3839    ๐Ÿ’ฌ 311    ๐Ÿ“Œ 200

Are these put in place by enzymes encoded in the viral genome?

28.11.2025 18:23 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

This isn't making sense to me. Aren't those sugars placed there by enzymes made by the cells the viruses are infecting? And shouldn't similar sugar combinations be widespread on other cells in the body?

Why would these things block viruses and not end up plastered all over our cells?

28.11.2025 17:53 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

While US courts have not taken up the issue of whether all the "gifts" Trump has received are bribes, it look like the Swiss legal system might weigh in.

28.11.2025 13:03 โ€” ๐Ÿ‘ 50    ๐Ÿ” 12    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

@jtimmer is following 20 prominent accounts