K. Eric Drexler Quotes
The basic parts, the start-up molecules, can be supplied in abundance and don't have to be made by some elaborate process. That immediately makes things simpler.
Brown, David Jay, and Rebecca McClen Novick. "K. Eric Drexler: Nanotechnology and the Assembler Breakthrough." Voices from the Edge: Conversations with Thinkers of the 21st Century. Crossing Press, 1995.
Kim Eric Drexler is an American engineer best known for seminal studies of the potential of molecular nanotechnology (MNT), from the 1970s and 1980s. His 1991 doctoral thesis at Massachusetts Institute of Technology was revised and published as the book Nanosystems: Molecular Machinery Manufacturing and Computation (1992), which received the Association of American Publishers award for Best Computer Science Book of 1992.