2 Trillion is the number of mRNA strands.  There are up to 100 mRNA strands packed into each lipid nanoparticle. 

20 billion lipids x 100 mRNA strands per lipid = 2 Trillion mRNAs.  INCREDIBLE & frightening!

But imagine how many Spike Proteins are made!!  Each mRNA is read and re-read a minimum of 70 times.  They added a poly A tail to the end of the mRNA sequence that is 70 units long.  Each time the mRNA is read to produce a spike protein, one of the amino acid "A's" is knocked off the end.

In theory the mRNA strand should become non-functional at that point and destroyed, but the substitution of Uridine with the n1 methyl pseudouridine in the mRNA code threw out any ability to predict what is normal behavior for this strip of genetic 8nstructions. 😃