Advent of Computing Episode 74 - The Elegance of LISP
Jan 24, 2022
Discover the elegance of LISP and why it's considered the mother tongue of artificial intelligence. Explore its unique features, like first-class functions, that set it apart from other languages. Delve into the pivotal Dartmouth Workshop where AI was born and the challenges John McCarthy faced in its creation. Learn about LISP's evolution from early list processing languages to its impact on computability and the development of AI. The journey reveals how LISP shaped the thinking machines of today.
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Dartmouth Workshop Coined Artificial Intelligence
- McCarthy organized the 1956 Dartmouth workshop proposing a two-month study to test if learning and intelligence can be simulated by machines.
- The workshop coined the term artificial intelligence and assembled figures like Marvin Minsky, Nathaniel Rochester, and Claude Shannon.
Fortran Versus IPL Shaped Lisp's Design
- IPL offered powerful list features but was hard to use, while Fortran provided expressive syntax and hardware access but only flat arrays.
- This tension shaped McCarthy's search for a language combining flexibility and usability for AI.
FLPL Extended Fortran But Fell Short
- McCarthy proposed FLPL as Fortran extensions to handle linked lists while consulting for IBM.
- FLPL added Newell-Shaw lists and pointers to Fortran but lacked recursion and introduced inconsistent function return behavior.