I know.
But he’s wrong in thinking the proteins in ribosomes make the proteins.
Ribosomes are mainly RNA.
The RNA makes the protein.
RNA catalyzes the reaction that joins the amino acids.
All the proteins of a bacterial ribosome can be carefully removed and the ribosome still catalyzes the reaction.
Interesting...
But, not an obvious fact that a science writer and his non-scientist readers should be expected to know about.