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Even photographic cameras have difficulty with exposure for dark skin. This is a problem as old as photography.


So the deltas are narrower creating a breakdown in the SNR for say edge detection?

Please excuse me if this is totally wrong and I sound ignorant, I assure you I am...


Don't be dense. Whether you admit it or not, most people judge others based on appearance.


Don't be denser, judging others by their appereance is shallow. The fact that people still do it doesn't mean that when you change your clothes that's any kind of expression proper.

It's just a cheap way to signal something that you might or might not be, and only superficially at that.


Yes, don't treat people badly (mostly) because of the way they look.

But be realistic. Someone that wears all black has made a choice just like the person that is always fashionable with lots of clothing. Some beard and hairstyles take more work than others. These are lifestyle choices people make. Someone knowing how to do 20 hairstyles to get their hair off of their neck decided to learn that instead of something else. A man with a complicated beard style probably spends some time daily on it to keep it up. A person with nails half the length of the fingers they are attached to probably eshews some practical things simply because the nails are in the way. A person that wears traditional clothing due to religion probably isn't a good candidate to date me.

I understand that being poor might make it so you don't have a lot of choices in these things. I've been there: My look was basically whatever I was forced to wear to work and whatever I could find at thrift stores. At the end of the day, though, I still had choice -and to discount what these choices tell others about you is, in itself, dense - as is discounting that humanity often makes snap judgements based entirely on how things look.


You use "cheap" as a pejorative, but it's actually a positive. By signaling that you are X, or believe yourself to be X, (where X can be anything - gender, hobbies, wealth, social class whatever) you gain the interest of everyone who is seeking X without needing to speak to them. And save the time of everyone who isn't interested in X. It's a cheap, efficient way to filter people. Is it perfect? Heck no. But humans are often happy to sacrifice accuracy for speed.


People are shallow. And cheap signalling is best signalling, no reason to be wasteful.


What's a good way to judge people?


20 posts in 9 months is not much at all.


Thank you :)


Instead of trying to prevent daughters from having sex, parents need to educate their daughters on fertility cycles.

Women are only fertile for a limited amount of time during each cycle. Sympto-thermal fertility tracking methods, as described in the book "Taking Charge of Your Fertility" by Toni Weschler, empower women to understand exactly when in their cycles they are fertile.

Understanding your personal cycle of fertility means you can accurately predict your period, understand precisely when you have ovulated, know when you are fertile and infertile in your cycle, and avoid the side effects of hormonal birth control.

I have personally used sympto-thermal fertility tracking as my exclusive method of birth control within a relationship for 2 years.


Of course this works, but most people who want to prepare their teenagers for the consequences of a sex life will push for condoms and possibly additional birth control.

Pregnancy is just one consequence, obviously.

Culturally, a lot of people still would rather use tactics intended (with whatever level of efficacy) to prevent teenagers from being sexually active altogether.


This method, while effective, is likely to be a significant frustration for the woman in this situation, given that cyclical high fertility usually coincides with high sex drive.


On fertile days you use a condom. Simple as that.


>I have personally used sympto-thermal fertility tracking as my exclusive method of birth control within a relationship for 2 years.

Are you sure neither of you is sterile?


This is all true but unfortunately in our society we seem to have decided that no one could possibly be responsible enough to follow such a self-monitored schedule and instead the responsible thing to do is just tell people it doesn't work.

Like our gov and the WHO telling us not to wear masks recently.

Most women in my experience are pretty regular and you can trivially avoid having sex for an exta few days out of the month. Coupled with "external finishes" i have a feeling this is actually a valid method of birth control for responsible couples.


I would guess every citizen of a hosting country has felt similarly.


I've been blown away by Cuomo's steady hand and calm reassurance in this time. While De Blasio has flip-flopped from apathy to utter panic, Cuomo has remained fairly consistent. I appreciate his insistence on preventing panic by using specific language.


Being a doctor involves at least 4 years, plus an extra 3-4 for residency — and that's assuming you have met the pre-med requirements.

There are several other health care options that are much quicker to learn. Such as nursing, physician's assisting, lab work. Etc.


> Gasping and panicking, they inhaled water. Friðþórsson, by contrast, managed to control his breathing. He later described remaining clear-headed throughout his swim.

I wish the article had gone into Friðþórsson's breathing a bit more. It seems like this and/or his body fat are what kept him alive.


You get used to that cold shock, I take a cold shower every day for many many years, and quite frankly I don't feel a "cold shock" anymore, even in winter. It's really just requires a bit of training to get less sensitive to cold; on the other hand I also have a tendency to get warm a lot quicker, which can be a bit annoying sometimes. I keep my house at 18C and no warmer, when many people I know want 21C or sometime more...


I used to take cold showers when I was in moderate temperature zone, now I am in US/Canada, and recently started having cold showers (for the last 2 months) almost after 10 years.

I agree to all of the things you said, once you get used to the cold showers, in fact you would want more and more cold water running over you. More cold will get to be fine.

However, one thing I find annoyingly bad, given the time of the year is that I feel by body warmer (and feel that I might run a fever) and had to check temperature couple of times to see it is only normal. Not sure if this is going to be a long term thing or I might get used to it eventually.


> You get used to that cold shock

I'm currently only taking cold showers, this is the third time I've started doing so. The very first one was quite an experience: my vision turned gray for a few seconds, I couldn't breathe, and I nearly fell over. The next day's was a little jarring but tolerable, and it kept on like that, a little less each day.

Then I fell out of the habit. My second and third times getting back into it, I didn't experience nearly the same drastic physiological effects, it was Day Two over and over again.


Do it gradually -- first one arm, shoulder; then the other arm, shoulder, then your front, then your head, then lastly your back. Don't dither about it, but don't dive into it either :-)


This is basically the same sequence I use (cold showers for over a year).


What's the idea behind getting cold showers? why is it beneficial?


Well, nothing scientific than I'm aware of, strictly speaking, but I love the effect.

Right after the shower, you'll get super warm, even in winter. You're system just gets going to equalise your temperature.

Also, you'll be woken up no dithering about in a stupor until your coffee kicks in, it definitely gives you a kick in the backside to get going, so even just for that, it's worth it in my opinion.

And, I never get cold. I can work outside in a t-shirt in winter (UK winter) without feeling any cold.


A physiotherapist suggested it to me and did it himself, and I think the claimed benefit was our modern demon "inflammation". I'm not qualified to judge but it would probably help for people with some kinds of joint/back pain.

Edit: Forgot I also heard about it promoting an energetic response in the body (starting your engine for heat) to wake up for the day ahead and start burning fat before your first meal. I heard Tony Robbins talk about an ice room or something similar in his house that he uses for that. Probably not ideal for night time showers.



I have tried to get used to cold showers several times. I always feel great afterward but I always get sick after a few weeks of cold showers. Not sure why that is.


Not advocating it, but you could look into Wim Hof's method: https://en.wikipedia.org/wiki/Wim_Hof. Critics do wonder if it has to do with his brown fat composition.


he has undergone clinical studies and his methods have been shown in a lab to activate brown fat

https://www.wimhofmethod.com/brown-fat

https://www.wimhofmethod.com/science


I was given cheese and buttered bread on a short regional flight in Italy. Leagues better than any cheese or bread I'd ever had in the United States.


This classic video begs to differ: https://www.youtube.com/watch?v=fDKDC_IUnOA


TBH, I am not sure the dog does what he does to teach the puppy, rather then to just grab more attention.

Not disputing the overall claim, that animals do teach intentionally.


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