Why do so many men get so much anxiety and adrenaline rushing though their body when they try to chat up a new lady for romantic purposes?


Did something bad happen to our ancestors who went on such adventure? Did men who get rejected also get killed or something?
Were ancestral women bad asses who could kick a mans ass?
Why is it such a big deal?
Are most men just not supposed to reproduce due to self elimination?


So many times have I seen a cute girl but then lost my fucking balls. Once the moment is gone I het my balls back and wonder what I dreaded. Is their a way to override this fear when in the moment?

I've started learning mathematical finance by reading its major papers instead of a textbook. I did this because as I understand it the subject mostly started with Markowitz in the 50s and hasn't yet branched off into a billion different areas like more general probability or like differential geometry to the point that textbooks become necessary for directing students. I think the applied and focused nature of the field is to thank for this.

By now I've gone chronologically through various papers by Markowtiz, Fama, Black&Scholes, Merton, Vasicek, Margrabe, and I'm working through Harrison-Pliska right now. Most of these were about 30 pages but pretty quick reading, some taking like 2 weeks at the longest. And thats only going through them when I have the spare time, working out all the steps and everything.

But anyways, I've noticed that I am retaining info better than when I try to learn something from a textbook. Does anyone have any ideas why? Could this work for other branches of math? I would really like to learn some complex manifolds but its so old and become so broad and interwined with other math that its hard to even find a sequence of papers from its beginnings to present research.

Yeah this isnt really a question, just a blog on how I have found more success by reading papers than a canonical textbook, but it only seems plausible to do in relatively new and narrow disciplines.

I absolutely hate reading scientific papers. I can't focus on them for more than like 5 minutes, they are written in such a boring way. Does anyone actually like this fucking shit or does everyone just force themselves to read through this crap?

Is space colonization beyond Mars doomed if faster than light travel is proved impossible?

Does anyone know how they pump in cold water and pump out hot water to cool the interiors of submarines? (or heat them).
Any good diagrams greatly appreciated.
Trying to design an underwater data centre, and I would like to have a method of gathering the hot water to pipe it somewhere else...

Can there be space without matter?

As solutions of Differential Equations, what exactly are the functions sin(), cos(), exp() and ln() and well as how are rhey related? How do we know that they can be solutions to Differential Equations? Can somebody please prove or illustrate this to me? Preferably in terms of slope fields, but any way is alright.

I find it fascinating that we can just invent a function to be a solution to a DE. This is why I'm interested in such a construction.

I woke up from a dream in which i remember shouting the word "nigger" as loud as i could, it felt very similar to how you would say it in real life, it even felt like i woke up for a brief second from how accidentally loud it turned out.

So how loud could shouting from a dream actually turn out? I live in relatively quiet and peaceful neighbourhood so it would feel very shameful.

Why do men have X chromosome? Cant we just have YY instead?

can i get some,. scientific description on how a walking cycle, or a loop happens, like this
https://youtu.be/C6uYJp-q6ug
basically how all the muscles used in the characters moves itseld in 3d space hence creating the wanted motion that repeats itself while also avoiding unwanted things like(unless wanted) : limping, jitterings, floaty/weightless motion, whatever makes something considerably "unrealistic"?

I had imagine this would be /3/dcg but there havent been any satisfying things there and it seems mechanically, a good, natural motion,. is basically scientific before automated?

pls link me any useful resources too like procedural motion or kinematics to make things easier thx