I stopped biting my nails (coating them in a bitter substance to remind myself not to bite them if I tried) and I did not make any replacement habit. I don't have a "habit of not biting my nails" any more than I have a habit of breathing. It happens automatically without conscious effort, so calling "not biting nails" a habit is misusing the word.
That study is testing the effect of tobacco use, not pure nicotine.
EDIT -- why is this downvoted? The linked study does not test your claim. Tobacco smoking is a CYP1A2 inducer so it will increase caffeine metabolism, but I am not aware of any studies demonstrating that the nicotine is responsible for this. Tobacco smoke contains PAHs and PAHs are known CYP1A2 inducers: https://www.ncbi.nlm.nih.gov/pubmed/25911656
This rule is incomplete. Most two-syllable adjectives ending in "y" can be converted to comparative form with "er". Some of these may be uncommon, but not all, and my spell checker agrees they are real words, in both British and American English.
Eg. Angrier, heavier, cleverer, friendlier, happier, lazier, tidier, etc. And even three syllable words can take "er": bubblier, foolhardier, jitterier, slipperier, many words starting with "un".
I do not know if emigration can be attributed to climate change or not, but I do that that Israel produces very large quanties of fresh water by desalination:
https://en.wikipedia.org/wiki/Desalination#Israel
Neighboring countries may not be able to afford this.
Cooking by weight is common in the UK, and it's superior for two reasons: One, it's more accurate, because it's unaffected by packing density. Two, it's quicker, because you can pour all the ingredients directly into one container, zeroing the scales between each one. Cooking by weight is standard for professional baking even in the US.
It's true that most projects don't need or use the advanced features of git, but this isn't a good reason to use svn, because git can also be used in a simple manner: http://git.or.cz/course/svn.html You're at no disadvantage compared to if you used svn.
But when you want to contribute to one of the big projects that does require the full power of git, you are at an advantage, because you don't have to learn a complete new version control system, only the extra git features you hadn't learned yet.
Pushing the fat man is the wrong choice because it forces fat men everywhere to constantly be on the lookout for consequentialists, and causes moral hazard by encouraging lax safety around railroads. Consequentialism is only indisputably the correct morality when everybody is perfectly rational and everybody has the same goals. In reality people have differing terminal goals and perfect rationality is impossible because of limited computational ability. Deontology is superior because it is far more predictable. Nobody has to waste brain cycles on avoiding being a convenient victim for some dubious "greater good".
The chance of an AI torturing humans as a means to some other goal does seem low, but what about the AI torturing humans as a end in itself? I think CEV could result in this with non-negligible probability (>0.000001). I wouldn't be surprised if the typical LessWrong poster has very different morality than the majority of the population, so our intuition of the results of CEV could be very wrong.
I thought Worm had a very bad ending. Vg cebzvaragyl srngherf Pbagrffn, jub vf gur jbefg punenpgre naq unezf gur fgbel fvzcyl ol rkvfgvat. Gnlybe ybfrf ure cbjref. Gur Fvzhetu fgnegf fbzr cyna naq gura gur cybg guernq vf nonaqbarq.
But despite this I still consider it one of my favorite stories.