Freeze dried sperm heads are published as capable of fertilizing eggs as part of dish procedures, IVF is different than the idea here which is to make a freeze dried sperm product that can be put on telephone directory coupons, custom stamps, Consumer Reports magazine, beauty hairstyle magazines basically
various readers will have various feelings about heredity, there is much published data that such things as height, skin light reflectance, beauty, various forms of cleverness, as well as personality are strongly heritable [link]
My thought as a person that favors eugenics is that really wonderful genes, better than the ones I have, better than the ones a person out of a million has should be immediately cheaply available to people thinking about pregnancy
If genes that contributed to kindness, happiness, calmness, cleverness, beauty as well as superpowers like musical ability, being pleasant to raise as a child, or various orgasmic forms were as on the table as advertising many people would opt to go with popping the telephone book coupon n their vagina rather than going with the person the are currently with.
historically huge numbers of people just kind of were with who they were with; divorce approaches half the population, child support rates are what they are; If half the population went with the telephone book coupon genes their kids as well as their lives as active attentive mothers would be happier, with brighter futures.
now the technology
the big thing with reconstituted swimming human gametes is motility, there are no references suggesting they swim after reconstitution
Freeze dried sperm are adequate at fertilization among numerous species with IVF techniques
I think that tail structure can be preserved with these lab techniques
jupiterscope thread; the jupiterscope is a wibbly vinyl diffraction grating [link] if you put a jupiterscope on a greasy window the grease will conform to the grating pattern creating a lipid array so precise it diffracts light, to me that suggests a lipid cartoning effect that sperm heads n tails can nest at prior to freezing, this creates a bunch of nesting, ice nucleation cavities around the sperm tail to guide crystallization minimizing structural harm
compressible creamy foam with microstructure; with this you use a jupiterscope like carton array to pattern a lipid or near lipid like a a super long CFC or silicone oil that is much more compressible than the lipid cytomembranes; there is also some published material that freeze dried enzymes double their biological activity when freeze dried with chlorofluorocarbons; none of the twelve pubmed reports on freeze dried sperm use chlorofluorocarbons as water volume replacers or protectants during the freeze drying process; water fluorocarbon emulsions are published as blood replacers I think having live sperm absorb fluorocarbons prior to freezing will minimize volume change
Noting that with research effort the freeze drying efficacy of a bacteria goes from "survival of Lb. coryniformis Si3 varied from less than 6% to over 70% between the different conditions" [link] I think making the freeze dried sperm telephone book coupons is possible