I think they are saying this dude is so cuck that he is raising his wife and non-existent brothers child.

Imagine your dead twin using your penis to impregnate your wife with his DNA.

Imagine you are le innocent wife, but your son does not have your father's DNA

Being incredibly close, genetically, probably helps a lot. Cancer is just ones own cells that turn into a parasitic mass BUT there’s entire dog STI that’s actually a thousands of years old boneless dog(the dog’s cancer cells) which was likely originally spread through a bunch of domesticated, inbred dogs.

So his immune system’s like “eh, close enough”.

Let me preface this by saying I don't know shit about shit, leastways medical shit, so this is probably completely stupid:

His immune system developed like this from the beginning, and it know no other way. So it just works.

Or maybe it doesn't. The person could have all sorts of auto-immune stuff going on, they didn't say.

There might be two reasons why there was no immune response:

• The immune system responds to protein on cell wall known as Major Histocompatibility Complex. Siblings share many if not all of the important MHC proteins to seem identical to immune system. Maternal twins or identical twins share all of the MHCs. That is one of the reason why there is a high chance of you getting a compatible tissue or organ donation from siblings than parents.
• Sperms and seminal vessels are essentially outside the immune system just like spinal disc, eye lens, joint cartilages. Immune system doesn't even know they are present.

I wouldn't be surprised if he had autoimmune disorders his whole life, without knowing why.

Hey now his brother has never been more alive.

Yes, it was the case of Lydia Fairchild

From Wikipedia

Fairchild stood accused of fraud by either claiming benefits for other people's children, or taking part in a surrogacy scam, and records of her prior births were put similarly in doubt. Prosecutors called for her two children to be taken away from her, believing them not to be hers. As time came for her to give birth to her third child, the judge ordered that an observer be present at the birth, ensure that blood samples were immediately taken from both the child and Fairchild, and be available to testify. Two weeks later, DNA tests seemed to indicate that she was also not the mother of that child.

A breakthrough came when her defense attorney,[1] Alan Tindell, learned of Karen Keegan, a chimeric woman in Boston, and suggested a similar possibility for Fairchild and then introduced an article in the New England Journal of Medicine about Keegan.[2][3] He realized that Fairchild's case might also be caused by chimerism. As in Keegan's case, DNA samples were taken from members of the extended family. The DNA of Fairchild's children matched that of Fairchild's mother to the extent expected of a grandmother. They also found that, although the DNA in Fairchild's skin and hair did not match her children's, the DNA from a cervical smear test did match. Fairchild was carrying two different sets of DNA, the defining characteristic of chimerism.

Some racism was involved

Not surprised after reading the first paragraph

Are you thinking of Lydia Fairchild? In her case she wasn't sent to prison. However, her two children were taken from her and placed in foster care. Lawyers had refused to represent her at first, due to the belief that DNA evidence is too strong to fight. On the plus side, she became pregnant again. So a court officer was present during her third child's birth.

Despite being at the birth and witnessing blood draws from both mother and child, the court still claimed she was being untruthful somehow. Thankfully, that birth and its evidence were peculiar enough to attract a lawyer to finally represent her. Only after that did the investigation into potential chimerism arise.

More info here - https://embryo.asu.edu/pages/case-lydia-fairchild-and-her-chimerism-2002

I hate the generalized concept of "AI", but I love the concept of "Machine Learning"

If you think LLMs are good at anything, I am almost 100% certain to disagree with you about pretty much everything, to help you understand this distinction.

Anyhow, some computer scientists found that a machine learning algorithm could predict beyond a null hypothesis that A fingerprint belonged to a person given a different fingerprint (different finger but still same person)

"Criminology" expers were just like "no, it's settled science"

This is the state of discourse.

1. why do I even feel the compulsion to preface by saying my bit about ai and llms?

2. how tf is "settled science" even a concept in a science

HeLa is extremely interesting, but still requires humans to cultivate her cells.

Canine transmissible venereal tumor however, is an immortal, contagious dog tumor from a dog thousands of years ago that evolved into its own lifeform - a sexually transmitted parasitic cancer - that has continued to this day to spread from host to host. Yet, genetically, it is still "dog".

Anyway, this is my answer when the job interviewer asks me about long-term goals.