The RNA World referred to an hypothetical stage in the origin of life on Earth.

I was born in Montreal in 1939, the second son of poor immigrants.

Eight months later, having left Columbia, I was studying physics in a summer program and working in Colorado when I decided to enroll as a graduate student in biophysics.

For our immediate family and relatives, Canada was a land of opportunity.

The RNA World referred to an hypothetical stage in the origin of life on Earth.

I should mention that while I was growing up, Einstein was presented as a worthy role model for a young boy who was good at his studies.

I spent eighteen months as a graduate student in physics at Columbia University, waiting unhappily for an opportunity to work in a laboratory and wondering if I should continue in physics.