Tim Growney

Technology leader in Monaco. Former co-founder & CTO @Medinashealth.

[Tim Growney @realTimGrowney]

I'm just a dev, standing in front of a browser, asking which element is scrolling right now.

[Tim Growney @realTimGrowney]

Astrophage?

[Erika  @ExploreCosmos_]

Astronomers are now observing a remarkable transformation in one of the most extreme stars known, designated WOH G64, a red supergiant located in the Large Magellanic Cloud about 163 000 light-years from Earth.

This star is enormous, on the order of thousands of times the Sun’s radius and hundreds of thousands of times its luminosity, and has long been classified as an evolved massive star nearing the end of its life.

For decades, researchers have monitored it with instruments such as the Very Large Telescope Interferometer (VLTI), which in 2024 produced the first detailed close-up image of this extragalactic supergiant, revealing an elongated, egg-shaped structure of gas and dust surrounding it, likely formed by mass lost from the star itself.

Recent observations with the Southern African Large Telescope (SALT), spanning late 2024 through 2025, have shown that WOH G64 has been dimming and its apparent temperature rising, contrary to simple expectations of red supergiants uniformly cooling as they exhaust their nuclear fuel.

These spectral and photometric changes initially led some teams to propose that the star was transitioning out of the red supergiant phase toward a warmer “yellow hypergiant” stage, a potential precursor to core collapse.

However, deeper analysis of the optical spectra revealed persistent molecular absorption bands from titanium oxide (TiO), a signature of cool red supergiant atmospheres, indicating that the star remains in that phase.

The current interpretation is that WOH G64 is part of a binary system in which a smaller, hotter companion affects the outer layers of the supergiant, stretching and redistributing them and producing the observed changes without requiring a true evolutionary jump.

This system’s evolving brightness and spectral properties mean astronomers are effectively watching dynamic processes unfold in real time in a star near the end of its life, offering rare empirical data on the late stages of massive stellar evolution.

The behaviour could reflect complex interactions between mass loss, circumstellar dust, and binary dynamics, and underscores that the pre-supernova phase of such stars may be more chaotic and less predictable than standard models suggest.

✨ https://t.co/famMr6n3oN

[Tim Growney @realTimGrowney]

@levelsio My dad is an almost-retired American general surgeon. Practiced his whole life in the American Midwest. When I ask him about preventative whole-body scans he says almost the exact same thing.

[Tim Growney @realTimGrowney]

@zachweinberg If it benefits the US and the world at the same time, why not? My question is more whether or not the US Gov should play a hand in things that befit everyone in specific domains. I generally regard Operation Warp Speed as both a national and global good, for example.

[Tim Growney @realTimGrowney]

@zachweinberg Could the US have an influence on that though? For example if some nascent technology started off more expensive than the mainstream but was subsidized locally, wouldn't there be an external incentive for the global manufacturers to also sell everywhere else at scale?

[Tim Growney @realTimGrowney]

@zachweinberg Should environmental impact play a role? If one methodology is the cheapest and the biggest winner but does outsized harm to the environment and/or local ecosystems, should the government provide incentives for a possibly less competitive but less harmful solution?

[Tim Growney @realTimGrowney]

@levelsio Maybe where you are. In France they have these.

https://t.co/KGGMx2libi

[Paul Graham @paulg]

If you haven't decided yet who to vote for, here's why I think you should vote for Harris.

[Tim Growney @realTimGrowney]

@TheSMac73 RIP Podcasts. I hardly knew ye.

[Tim Growney @realTimGrowney]

The saddest part about Google announcing new AI things is that they've trained me to expect to not be able to access them right away, then when I can access them the process is so nebulous that I just go back to someone who ships faster and makes the Google thing obsolete anyway.

[Tim Growney @realTimGrowney]

Tax season is Groundhog's day for me. Every year I look for IRS APIs & OSS to do my filings so I don't have to give my data to scummy tax software companies. And every year I'm re-reminded that the USGov isn't Stripe.

[Tim Growney @realTimGrowney]

@terronk Life is short. Eat the 'mallow.

[soul nate @MNateShyamalan]

in the 90’s, computers would scream every time you went online. that was foreshadowing

[Michael Seibel @mwseibel]

Get off the sidelines and get into the game - apply to YC. Deadline is Friday.

[Tim Growney @realTimGrowney]

I like Node tho

[Adam Rackis @AdamRackis]

Devs (in general) are basically begging and cheering for something to kill Node.

Node maintainers seem burned out and angry.

At this point I hope Bun just puts Node out of its misery.

[Tim Growney @realTimGrowney]

#teamgeg

[Tim Growney @realTimGrowney]

There's no place like.. home.

[philip lewis @Phil_Lewis_]

Nebraska police pull over man with a Watusi bull riding in the passenger’s seat https://t.co/UpzcijbjVN

[Yuri Sagalov @yuris]

Investors really underestimate to what extent founders remember bad behavior and will warn others even years later.

[Yuri Sagalov @yuris]

Founders, if you're in the fortunate position to have AWS/etc credits, don't treat them as "free money."

Instead, treat it as extra cash on your balance sheet that you can only use for one purpose, and count your AWS usage as part of your burn. Don't wait until they run out.

[Tim Growney @realTimGrowney]

Endorsed, and I'd take it further. Anything that comes between you and the ground. Add tires and shoes to it.
The older I get, the more important this becomes.

[Scott Hanselman 🌮 @shanselman]

Invest in your own ass https://t.co/64Vht7seeN

[Tim Growney @realTimGrowney]

Whoooo I'm glad I wasn't the only one who saw the new Postman and thought "ew".

[Amir Salihefendić @amix3k]

$433M money raised, and a $5.6bn valuation happened. Postman needs to do a lot more than request inspection to justify this. For these numbers to make any sense, they would need to do $1bn+ in ARR for a freaking API client utility...

Looking around, there are so many companies that are in deep trouble. They have raised a ton of money on crazy valuations they'll never grow into.