Jack Fields

Former Apple engineer running Ordinary Industries // Head writer at @kernelext // Polymath // I use Vim btw

[Jack Fields @OrdinaryInds]

I try not to mention it often but I have a Discord for devs, engineers, and tech nerds. Come hang and share what you're working on if that's your thing.

https://t.co/Qz2vl7AKwE

[Jack Fields @OrdinaryInds]

@cizz0r @mysk_co I’m sorry then. I reacted too quickly.

[Jack Fields @OrdinaryInds]

@cizz0r @mysk_co Re-reading, the post I replied to might have been a joke. If so, my bad.

[Jack Fields @OrdinaryInds]

@cizz0r @mysk_co The battery level is fuzzed and not accurate. Apple intentionally makes it less accurate precisely to thwart fingerprinting. You’re conflating things and blowing them out of the water.

[Jack Fields @OrdinaryInds]

This isn’t entirely true. Battery level is fuzzed and intentionally inaccurate via public APIs. In iOS 17, battery reporting went from a 1% granularity to 5%. It’s accurate enough to build apps on but not accurate enough to fingerprint with.

[Mysk 🇨🇦🇩🇪 @mysk_co]

Did you know that all apps installed on your iPhone can see your battery percentage and whether your iPhone is recharging or unplugged? No permission is needed for that. Soon you'll be able to try our new privacy-focused app on your iPhone to learn more. 👀

[Jack Fields @OrdinaryInds]

@mysk_co @wtsdev Which is plenty to be accurate enough for apps but not accurate enough for fingerprinting.

https://t.co/E4iWbIWAZz

[Jack Fields @OrdinaryInds]

Holy fuck I almost went live instead of just attaching a GIF. Too many squares.

[Jack Fields @OrdinaryInds]

Nearly every response to this is clear. Why are we typing it instead of using ctrl T or cmd k? Genuinely.

[Jack Fields @OrdinaryInds]

A deck of cards can be shuffled about 80 unvigintillion different ways. That’s more than the atoms on our planet. It’s statistically unlikely that two decks have ever been in the same order.

[Jack Fields @OrdinaryInds]

Nelson Bighetti is still waiting for Nip Alert to take off

[Bearly AI @bearlyai]

every day someone vibe codes a new app that has never existed before

[Jack Fields @OrdinaryInds]

I don’t know why this decision was made in particular but I imagine it has a ton to do with thermals just like most other manufacturers. A lot of heat dissipates upward and having the screen both on and the machine closed prevents a fair bit of that from moving freely. Hence why the only supported way around it is through closed clamshell mode.

[Jack Fields @OrdinaryInds]

So you buy a Windows computer, uninstall Copilot, and it just shows back up on every system update? And you still buy Windows machines?

[Jack Fields @OrdinaryInds]

@thebrewergame How do you think I feel? Do I keep being myself or do I now drop capitalization to conform to the standards of an 11 year old?

[Jack Fields @OrdinaryInds]

I was just told by an 11 year old that my use of proper capitalization makes me “unc”.

[Jack Fields @OrdinaryInds]

I’ve been doing this thing when I get hung on a code problem. I put on Victory Lap Five from Fred Again and either solve the problem by the end of the song or walk away for a bit. It’s quite shocking how often I get unblocked.

[Jack Fields @OrdinaryInds]

I hate that I can’t tell if this is a joke.

[Larry Kim @larrykim]

Today we cut headcount by 87%. Business is stronger than ever. Let’s be direct.

I own this. Productivity’s evolving. My company leads or dies.

Not cost-cutting. Savings rocket to the survivors: $7.5M bands for 10000x AI impact.

Deepest gratitude to the exited. Generous packages + LinkedIn kudos from strength.

THE 10000X ORG

Fewer humans. 10000x output.

Old jobs = AI bottlenecks in hoodies.

Builders: Elite engineers command agent armies.

Everyone else = review spam. PMs merge into AI whisperers. No shipping code — that’s for agents.

Agent Managers: Self-automators turned AI zookeepers. They eat.

Front-Liners: Human soul for customers. Agents do the rest (flawlessly).

Rewards: Savings fund the keepers. Old bands die. 10000x or goodbye.

Future: Pricier humans + silicon slaves. We’re the revolution.

Best to the “next chapter” crew ❤️

[Jack Fields @OrdinaryInds]

@j4567r Very true! And even if disabled, hopefully you get enough pings to get a general area.

[Jack Fields @OrdinaryInds]

I love the creativity behind this! I would be remiss if I didn’t mention that AirTags are a terrible idea for monitoring your car in any reasonable way. They rely on iPhones nearby to ping them and if someone steals your car they’re getting notified that the AirTag is with them. Plus you can scan the vehicle and find it pretty fast to rip out. You really need a dedicated tracker like LandAirSea with a cellular connection.

[norippy | Cue. / rino products @Norio_Delux]

AirTagの電源を電池ではなく、車のバッテリーから直接給電してずっと車の中に隠せるようにする基板と、その蓋を設計！

AirTagの回して固定する機構をMJFで安定して製造できるように何度も微調整が必要で、数回JLCPCBに発注。
やっと満足いくものができました👌

[Jack Fields @OrdinaryInds]

@tcgdxtr

[Jack Fields @OrdinaryInds]

If one more person says that want to “double click” on a talking point I’m going to lose it.

[Jack Fields @OrdinaryInds]

Let’s save this question for when we actually have artificial intelligence.

[Noah @NoahKingJr]

What’s coming after Artificial intelligence?

[Jack Fields @OrdinaryInds]

What exactly do you mean by “waste compute”?

[hayden @hxxwhite]

Serious question for other mobile devs:

Why waste compute running Xcode sims locally, when you can just stream them from the cloud?

[Jack Fields @OrdinaryInds]

It doesn’t actually. It’s rate limiting to make repeat attempts harder. Sometimes you’ll see that delay grow the more times you get it wrong in a row using an exponential backoff.

[0x45 @0x45o]

why does my mac need 3x longer to realize my password is wrong than when I type it correctly