In Darwin's time all of biology was a black box: not only the cell, or the eye, or digestion, or immunity, but every biological structure and function because, ultimately, no one could explain how biological processes occurred. ↗
But even before that, in 1980 I went so far as to write a book about what had happened. And I wrote all about the bank robbery, I went ahead and printed it even though I had no use immunity for it. ↗
No illusion is more crucial than the illusion that great success and huge money buy you immunity from the common ills of mankind, such as cars that won't start. ↗