I thrive in high-stress situations (for short periods of time). Examples include hardware validation before a large production run, putting out literal fires in manufacturing sites, and working in foreign countries to troubleshoot/rework bad hardware. I do fine in live coding interviews, they don't feel much different than being alone at an editor for me.

I was interested by the author's statement: "Working memory is the most reliable proxy (I know of) for fluid intelligence, your ability to reason, solve novel problems, and think abstractly." and the linked study (https://pubmed.ncbi.nlm.nih.gov/21037165/). My working memory is not so great, but it degrades less under stress.

Question worth considering for hiring managers: do you prefer stress-capable employees, or greater working-memory employees? Is my model a false dichotomy?

Shout-out to Violet Crown, PHENOM, Breakfast Club, UNITED, Night Owls, and all the other great cycling clubs in Austin! Wonderful community that I still miss.

Have you tried swapping bikes with your buddy? Are you two the same height/weight? Who has the more flexible spine? It would be fascinating to measure aerodynamic efficiency for two riders on the same bike. Is the more variation within populations, or between populations?

Try using the Silca Tire Pressure calculator set to "Gravel Roads". This will give a safe PSI recommendation with a nod to comfort. I would ride 28mm GP4000s around 75 psi on a training ride with lots of chip seal

I'm not sure if steel frames make a significant difference in comfort. If we measure comfort as deflection or vibration, then tire choice will have orders of magnitude more importance. When you have two springs in series, the combined spring constant is dominated by the weaker spring.

I race on a carbon frame with 30mm tires, and commute on a steel frame with 38mm tires for what it's worth.

Bike weight is irrelevant on flat roads. We should be obsessing over Watts/gram of drag, not Watts/kg if you're not a climber

I think the difference between aluminium and steel is easier to feel than carbon to steel.

Someday vendors will provide L2CAP support and we can all stop using GATT for bi-directional data transfer

Android allows you to initiate scanning and receive advertisements without user interaction (assuming the app has the permissions to run in the background and use Bluetooth). Advertisements are "broadcasts" or "beacons"

"Pairing" in BLE-speak is a key exchange procedure so devices can establish a secure connection without performing authentication again.

BLE communication can happen inside of a "connection", or outside of a connection.

A typical device "advertises" it's presence with beacons which are broadcast on 3 channels. These beacons are user-defined, so you can use them like UDP packets. Sensor wakes up and broadcasts the current temperature.

Your smartphone can receive advertisements while scanning. Check out the insane number of beacons present in an American apartment complex.

Note: BLE connections may be encrypted, or not. That's up to you. You do not need to "pair" (exchange keys) to communicate with a connection. There are 4 "modes" to authenticate. Without an out-of-band communication mode, all are vulnerable to MITM.

The latest BLE standard improves range with a half-data rate PHY. Range is determined by transmit power and attenuation. Most BLE radios are designed for short-range communication. I've never seen one consuming more than mW, but that does not mean you couldn't make an amplifier that transmits BLE much further

Lutron Electronics is a good counter example

I like to joke that as usage based insurance goes to infinity, we all become uninsured drivers...

Each insurance company uses the telematics differently. While the pricing model is regulated, it is not public. There is a substantial difference company-to-company

I think this is an instance of HN-confirmation bias. We all hate monitoring, so a study or article that says UBI and behavioral modification is harmful appeals to us.

Matter came around after I left, but I believe it is the same as CHIP: * IEEE 802.15.4 (2.4 GHz PHY/MAC) * 6LowPAN (IPv6 for constrained devies) * Thread (Mesh network layer) * UDP or CoAP (CoAP is like http for connectionless networks)

You need a bridge to connect CHIP to the internet (e.g. Apple Home). It was cool to route IP packets directly to lightbulbs from aws, but we don't bridge the networks in practice and all incoming/outgoing traffic goes through the bridge application.

Matter is the protocol running on top of IP, so it runs over Ethernet in the example (since the Pi doesn't speak 802.15.4)