Optometrist @brydenopticians | Co-founder @emerge_21 & Founder HODL Eyewear
Northern Ireland
Joined August 2017
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Alan Bryden retweeted
Coldcard's RNG bug resulted in drained savings for people. It's really unfortunate for those effected.
It's ultimately a firmware failure.
It's worth remembering, Bitcoin wasn't hacked. The protocol rules haven't moved.
The wallet was supposed to catch weak randomness before it became a problem. It didn't. Seeds ended up predictable instead of truly random, and nobody noticed for years.
Engineering failure. Not a Bitcoin failure.
Early cars had constant accidents. No seatbelts. No airbags. Brakes that failed. Nobody stopped driving. They fixed the cars.
Self custody is on the same road. The idea hasn't changed. Hold your own keys, answer to no one. The hardware around it is still maturing.
More scrutiny is the result. Every wallet maker now has to actually audit their RNG.
It will improve. Every hard failure becomes the standard everyone builds against next.
Self custody isn't the problem. Bad engineering is. It will get better from here.
Happy to say hodleyewear.com is finally up and running and accepting orders 🙌 @ZapriteApp
Been over 1 year since we launched our blue light blocking range at @BitcoinconfIRL
Testing the range in my own optical practice ever since & now finally online ready. ⚡️
Alan Bryden retweeted
Zaprite's Checkouts are now fully agentic-friendly.
LLM agents can request a payment quote, pay the returned wallet URI, and then check the Order status.
Point your agent here to learn more…
app.zaprite.com/llms.txt
Alan Bryden retweeted
Bitcoin is easy.
1. Exchange the weak money for strong money.
2. Self custody your money.
The majority are totally oblivious to what’s actually playing out 👇
▶️ Watch this 6 minute explainer video which summarizes the 1 hour 46 mins video (The Final Act: How the Iran War Ends (Lebanon, Deals & Global Reset). simondixon.com/blog/iran-war…
Alan Bryden retweeted
▶️ Watch this 6 minute explainer video which summarizes the 1 hour 46 mins video (The Final Act: How the Iran War Ends (Lebanon, Deals & Global Reset). simondixon.com/blog/iran-war…
Most modern problems come from broken inputs.
Broken money distorts the economy.
Broken light distorts human biology.
Fix the inputs and the downstream problems begin to disappear.
As an optometrist, I stopped just testing eyes.
I started studying light.
Because light is biological information.
If you:
• Struggle to sleep
• Feel wired at night
• Get digital eye strain
Look at your light environment first.
Morning sun.
Dim evenings.
Intentional screen use.
Ancient physiology. Modern chaos.
This short whiteboard explainer lays it all out - & go deeper in Simon’s recent episodes + highly recommend the most recent podcast hosted by @efenigson excellent discussion & insights 🔥
Who let the dog’s out….difficulty adjustment style 👌⚡️
Okay buddy. Come here. Sit. Good boy.
So imagine we’re playing a game.
You and a whole bunch of other dogs are digging holes in the yard trying to find buried tennis balls.
Every time one of you finds a tennis ball, you all bark and celebrate. That’s like a new Bitcoin block being found.
Now here’s the rule:
The game wants one tennis ball to be found every 10 minutes.
Not too fast. Not too slow. Just right.
But what happens if too many dogs join?
Let’s say suddenly 1,000 super energetic golden retrievers show up.
Now tennis balls are being found every 2 minutes.
That’s too fast! Zoom zoom zoom!
So the game says:
“Whoa there, pups. I’m going to bury the tennis balls deeper.”
Now digging is harder.
That’s Bitcoin raising the difficulty.
Now imagine most of the dogs go home for dinner.
Only a few tired pups are digging.
Now it takes 25 minutes to find a tennis ball.
Too slow!
So the game says:
“Okay sweethearts, I’ll bury the tennis balls closer to the surface.”
That’s Bitcoin lowering the difficulty. (We are here currently)
So, boy, every 2,016 blocks (about every two weeks):
Bitcoin checks:
“Are blocks being found too fast or too slow?”
If Too fast, it makes the math puzzle harder
If Too slow, it makes the math puzzle easier
The goal is always:
One block every ~10 minutes
No matter how many computers (dogs) are digging.
If less miners are mining, mining automatically becomes cheaper and more profitable for those who are still mining. Thus, the “economic problem” you pointed out does not actually exist.
Make sense big fella?
Well said 🔥 & just as we Bitcoiners push hard on differentiation between Bitcoin & “Crypto” - we now need to ensure people can clearly identify & separate those disgusting & evil individuals by association from the best open source utility for a prosperous future we all have.
Alan Bryden retweeted
“It’s going to crush gold.
It’s going to crush silver.
It’s going to crush every stock known to man.”
Bitcoin isn’t competing inside the fiat system.
It’s replacing it.
Especially in red years — Bitcoiners build.
That’s where the real progress happens. ⚡️ @ChrisMc_L @hodleye
21 Stacker is effectively a Bitcoin-native participation loop that mirrors familiar online competitions — but replaces fiat with truth.
9 days to go.
21 Stacker is a transparent, skill-based challenge with a fixed draw date.
Full walkthrough here 👇
21stacker.com/video-walkthro…
Fiat tries to stabilise prices by distorting money.
Bitcoin stabilises money and lets prices move freely.
#Bitcoin #freemarket #money
Alan Bryden retweeted
A nice integration of Zaprite's WooCommerce plugin by @Emerge_21 👀
@21_STACKER looks like a great way to help people make their first Lightning transaction—and potentially win some sats too!
21stacker.com/
@21Stacker was born from this thinking — mirroring where attention, culture, and participation live in fiat land, and rebuilding it natively on Bitcoin.
Bitcoin isn’t adopted by explanation alone.
It’s adopted through experience. ⚡️
21stacker.com
1st episode in a good few weeks - been a lot happening - find out what inside our this episode ⚡️let’s kick 2026 off in a Bitcoin-native way.
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