> The proper term is Immunological memory, and is a complicated subject I don't fully grasp. It’s very obvious. You’re citing a popsci video while accusing oth

> The proper term is Immunological memory, and is a complicated subject I don't fully grasp. It’s very obvious. You’re citing a popsci video while accusing others of falling prey to urban legends, and declining to offer references to the people asking for them. Let me be unequivocal: all the points you’ve made are inaccurate (except #2), because you lack this fundamental understanding of the difference between adaptive and innate immunity, and the value of paratope diversity. “Getting sick” (i.e. an infection reaching the point where it causes clinical symptoms) is crucial for the development of the adaptive immune response, whereby the body tries “randomized” antibody structures until it develops new ones that can bind to an antigen. Having a broad range of antibodies developed through this process, called somatic hypermutation, is important because your body uses prior antibodies it’s developed as starting points for developing targets against new antigens, so even for rapidly evolving targets like the flu, exposure to previous strains still can help stack the odds in the body’s favor. Ditch the youtube, and instead find a good literature review on immunology (e.g. https://doi.org/10.1016/j.vaccine.2010.07.022 https://doi.org/10.1016/j.vaccine.2010.07.022). Please stop blowing uninformed hot air.