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Cake day: June 18th, 2023

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  • Any trip to Mars is going to involve massive amounts of personal suffering and privation.

    Minimum mission duration of 3 years. Living space no larger than a small RV. All the food is freeze dried. Can you imagine the smell that will develop? If anything breaks, it’s on you to fix it, and there is no trip down to the hardware store, and no United Rentals to bail you out. Any medical complication? There’s no ER, just whatever you’ve got in the kit.

    And that’s not even starting on the chronic radiation hazard for which there is no viable option to deploy shielding. And a freak solar flare can cook you with acute radiation that will kill you at any time.

    Seriously, we’re talking about an adventure that would be way more epic than Shackleton.













  • 802.11ax, clients just… (essentially) wait for a random amount of time, listen for a break in the signal, and take a leap of faith.

    Ethernet originally worked the same way, back when it competed directly against token ring. Ethernet won by being as reliable in real world scenarios while being cheaper to build out. Gigabit Ethernet was the first standard that insisted on full duplex only.

    Half duplex mode with the collision avoidance is still actively supported for 10/100, but it is becoming very hard to find an unswitched hub. So you may have to write up your own twisted pair cables.