Viewing profile — Kirby64

But you can buy an EVSE capable of pulling 40 amps and plug it into a 20A rated receptacle. It will happily pull 40 amps until the breaker pops. Most EVSEs that are plug in have ad…

Why would speed capability be replaced with power capability? They are orthogonal capabilities intentionally so you don’t have to overbuild cables in either direction if you don’t …

How would better naming make things more clear when manufacturers don’t want to put labeling on cables, generally? Even if it was a USB-IF requirement, that doesn’t have any teeth.…

> Can you imagine a what would have happened if the car charging infrastructure would have used your regular 120/230V plugs? They largely do. I’m not sure I understand your point? …

Sometimes. They’re not required to be labeled, though. I would agree that the blue connector for USB3.0 is more common… but again it’s not universal and certainly not every device …

USB2 has been backwards compatible from the beginning though. I can’t think of a time in the past… 15, maybe 20 years where a USB cable wasn’t capable of high speed, unless it didn…

> Sure, 40gbps isn’t needed for all cables, but is some piddly 5gbps too much to ask? 5gbps means you add 8 additional wires to every cable, and also would require that both device…

If you’re following USB-C standard, all cables with faster data than 480mbps and more power than 60W require an e marker, period. Whether devices will still function for USB3 witho…

E markers are required for USB3, so that’s why. If you have a cable capable of 100 or 240W, they will also have a marker (it’s required), even if they only do USB2 speeds.

USB-A has many variants and we don’t call it a different connector. Heck, USB-B and micro USB both have 3.0 variants that are physically different and we don’t call them something …

It’ll never happen. Measuring to the proper Thunderbolt spec is only possible on literally the most cutting edge measurement equipment. Physics just won’t permit that being a gadge…

Unless you want all cables to be thick, $60, and cap out at 1 meter long, this is not a reasonable standard. 480mbps USB-C is perfectly adequate for many applications. Likewise for…

480i? Nobody owns CRTs anymore, so interlaced content is inferior in many ways. 720p is already garbage for 2026. We shouldn’t be reducing resolution, if anything it should be goin…

The physical proximity of the TVS diode is relevant for protection purposes. By placing the TVS diode physically close to the USB port, it does a better job at protecting than if y…

> You're missing the whole point of IRAs. I think you're missing the point of IRAs too. The primary point of IRAs is that you can defer taxes from a time when you have high taxes (…

> My returns over the last 30 years obliterate their returns, because turns out investing in high flying companies will have much better returns than an index fund. You do you. Onl…

That would be what an emergency fund is for, in traditional financial literature. If you mean something more tragic, that's what insurance and other products are for. Even then, 40…

No, this isn't how a backdoor Roth IRA works. Backdoor Roth IRAs involve making a traditional IRA contribution and not taking the deduction at tax filing time (because you can't), …

Total market is total market. Investing in a “total market minus X” fund means you lose exposure to X (whatever that is) for good or bad. That’s your judgment call, but not really …

No, they don’t. Anti-islanding protections are mandatory on these systems. They’re safe if they’re UL 3700 certified.

> whereas my friend's 20-year-old house has screws or nails starting to pop out of the drywall everywhere. This is a drywall installation issue, though, like you said. Lath and pla…

The same reason many inferior materials are used in higher end goods: there’s some mystic that its superior for one reason or another, potentially aesthetically, and the higher cos…

> New homes use PVC or PEX pipes, drywall, OSB (basically glued-up wood chips) instead of plywood, laminate floors, and plastic or styrene trim. PEX is better than copper. Drywall …

They absolutely would, UV mostly since it’s higher energy. It’s not stated but it’s possible they’ve coated the chip with a UV opaque coating that is transparent to infrared though…

> You start with basic logic gates like AND, OR, and NOT, then gradually combine them into adders, multiplexers, memory, an ALU, and eventually a complete CPU. Once you've built th…