Strong disagree. Probably what you say applies to the case of a couple that cares sufficiently to use several birth control methods, and that has no obstruction to using some methods (e.g., bad reactions to birth-control pills).
Using only condoms, which from memory was the advice I got as a high-schooler in Western Europe twenty years ago, seems to have a 3% failure rate (per year, not per use of course!) even when used correctly (leaving space at the tip, using water-based lubricant). That is small but not negligible.
It would a good public service to have an in depth analysis of available evidence on contraception methods. Or maybe we should ask Scott Alexander to add a question on contraception failure to his annual survey?
The Manhattan project had benefits potentially in the millions of lives if the counterfactual was broader Nazi domination. So while AI is different in the size of the benefit, it is a quantitative difference. I agree it would be interesting to compute QALYs with or without AI, and do the same for some of the other examples in the list.
Usually, negative means "less than 0", and a comparison is only available for real numbers and not complex numbers, so negative numbers mean negative real numbers.
That said, ChatGPT is actually correct to use "Normally" in "Normally, when you multiply two negative numbers, you get a positive number." because taking the product of two negative floating point numbers can give zero if the numbers are too tiny. Concretely in python -1e300 * -1e300
gives an exact zero, and this holds in all programming languages that follow the IEEE 754 standard.
Actually, the best tests of QED are correct to 13 decimal places, see the electron's g in https://en.wikipedia.org/wiki/Anomalous_magnetic_dipole_moment , or 10 if you only consider g-2 (which is much smaller than g).
The first four and next four kinds of alignment you propose are parallel except that they concern a single person or society as a whole. So I suggest the following names which are more parallel. (Not happy about 3 and 7.)
This quote is unsourced and cannot be found through a few online searches. It may be fake.