>>/151849/
Some with biochem degrees have said the iLNPs came from a bio-weapon lab, maybe these two participated enough to have "plausible ability" as the chosen winners...
iLNPs allows access through blood barriers of the brain, the placenta and the most protected, the testis. 
However these protective barriers came to be they are there to let nothing foreign enter. 

[Blood-testis barrier]
The blood-testis and blood-epididymis barriers are well known for being some of the tightest blood-tissue barriers in the mammalian body [65]. GO [graphene oxide]particles with diameters of 54.9 ± 23.1 nm had difficulty penetrating the blood-testis and blood-epididymis barriers after intra-abdominal injection, and the sperm quality of the mice was not obviously affected even at 300 mg/kg dosage [66].
https://particleandfibretoxicology.biomedcentral.com/articles/10.1186/s12989-016-0168-y


Here are the two "Deep-sea Angularfish" who think it's a good idea to be in your genes.
[video]
The Story Behind mRNA COVID Vaccines: Katalin Karikó and Drew Weissman
Penn Medicine
https://youtube.com/watch?v=DyCmhKMd148