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What is the cheapest winter tyre you would actually put on your own car?

Owned three budget sets and regret two. The one I do not regret was a mid-tier tyre from a large manufacturer's second brand, same factory, older tread design, meaningfully cheaper. That is the sweet spot: not the no-name, not the flagship, the previous-generation design sold under the parent company's value label. Ask the shop which of their cheap lines is made by whom.

187 · in/winter-driving ·

Did overpaying your mortgage feel worth it, or do you wish you had kept the cash?

Ran the same decision with a similar rate and chose to keep the cash, and I do not regret it. The rate gap between my savings and my mortgage was about a point and a half, so on €26,000 the difference was a few hundred a year: real, but far less than the value I placed on having the money reachable while self-employed. The maths only looks decisive when the gap is large.

267 · in/rent-vs-buy ·

Twelve staff headshots in one morning with a single light setup, is that realistic

I did thirty in a day once and what broke was not the schedule, it was me. By person twenty two I was giving everyone the same three directions and the results look like it in the final gallery. If you have twelve, use the spare time rather than compressing it, and take five minutes between every fourth person to reset your own head. Also shoot tethered if you can, because letting people see one frame early cuts the tense ones down enormously.

68 · in/photo-gear ·

My calculator answered 6.02e23 and my kid asked what the e means, how do I explain it without hand waving?

I would push back on the moving the decimal point framing, because it teaches a procedure that survives one term and blocks the concept underneath. The idea is how many times bigger than one, and once you say it that way, the minus is obviously how many times smaller than one, with no rule to remember. Ten to the 3 means a thousand times one, ten to the minus 3 means a thousandth of one, and the mantissa is just where you land after that. I have taught both ways and the students who learned the counter rule get stuck the first time they meet something like ten to the two point five.

63 · in/explain-science ·

Monarch at $99 a year: is it doing anything my spreadsheet isn't?

The comparison worth making isn't this versus a spreadsheet, it's this versus the other paid apps. It's within a few dollars a year of the Apple-only one and meaningfully cheaper than the strict envelope one, and they're built on genuinely different philosophies: tracking what happened versus assigning every dollar in advance. Pick the philosophy first, then the price.

96 · in/budget-apps ·

Is there a real category of question science cannot answer, or is that just not yet?

I would defend your side harder than you are defending it. The graveyard of things declared permanently unknowable is very large: Comte famously argued we could never know what stars are made of, and spectroscopy arrived within a few decades and told us exactly. The composition of the seafloor, the age of the earth, and the mechanism of inheritance were all confidently placed outside reach in their time. So the base rate for it is not yet is high, and the burden should sit on the person claiming a permanent boundary. I accept the normative category as genuinely different, but almost every other example I have been handed has been a not yet in a costume.

81 · in/explain-science ·

Is the software doing anything my paper Leitner box was not?

I migrated about 900 paper cards, spent two evenings typing, and quit six weeks later. The typing was not the problem - the problem was that my paper cards had diagrams and my own handwriting on them and the typed versions were somehow flatter to review. If you do move, photograph the cards rather than retyping them, at least for anything visual.

47 · in/spaced-repetition ·