Jack Szostak (Harvard/HHMI) Part 1: The Origin of Cellular Life on Earth
Science Communication Lab6 HN recommenders · 2016–2021
378K views · lecture · dated · Uploaded 2012-01-11
Jack Szostak's lecture covers how cellular life could have arisen from chemistry on the early Earth, starting from the odds of life elsewhere in the galaxy. It is part of a series on protocells and the RNA world.
Recommended as a clear, authoritative lecture series on plausible origin-of-life theories.
1:03:43How to Speak
MIT OpenCourseWare
57:151. Introduction to Human Behavioral Biology
Stanford
1:21:52LEADERSHIP LAB: The Craft of Writing Effectively
UChicago Social Sciences
1:11:40MIT's Pathway to Fusion Energy (IAP 2017) - Zach Hartwig
MIT Plasma Science and Fusion Center
52:29Stanford's Sapolsky On Depression in U.S. (Full Lecture)
Stanford
54:56Justice: What's The Right Thing To Do? Episode 01 "THE MORAL SIDE OF MURDER"
Harvard University
52:07What Bodies Think About: Bioelectric Computation Outside the Nervous System - NeurIPS 2018
The Artificial Intelligence Channel
39:49Lec 1 | MIT 18.06 Linear Algebra, Spring 2005
MIT OpenCourseWare
7 comments from Hacker News
I personally am a fan of the RNA world hypothesis: [LINK] RNA can act as both a store of information, and as an enzyme catalyzing reactions. In this theory, certain sequences of RNA would be the original self-replicating molecules. Over time, variations in their replication would give rise to other enzymes for specialized reactions, and DNA as a pure-data store. Jack Szostak has done an excellent series of short videos on the theory, and he and his students have done a surprising amount of experiments to support the theory. [VIDEO]
Recently I got interested in the origin of life. I found this 3 part talk which discusses how the simplest possible life form might have looked like. My feeling after watching this is that we are slowly getting there (which will also mean jump starting in a dish a self replicating thing from inorganic matter). [VIDEO] [LINK] [LINK]
There are also people trying to assemble life from simpler molecules that are commonly formed in non-organic processes. This series of presentation by Jack Szostak is rather interesting [VIDEO]
Jack Szostak does a pretty good job of outlining how life might have arisen. It’s less mysterious than it intuitively might seem: [VIDEO] [LINK]
I found it cute and quite meaningful. If you spend a good deal of time on Cellular Automata, Dissipative Structures and genetics these things really start to jump out at you. Here's a starter pack: Cellular Automata and Computation: [LINK] Origin of Life: [VIDEO] Dissipative Structures: [LINK]
Look into "dissipative structures", which are indeed closely linked to thermodynamics. In short, energy gradients (ie, on hydrothermal vents) can cause matter to organize itself into structures that more efficiently dissipate this energy. You can see how the creation of this structure would in turn enable the creation of a new kind of structure that lives on top of that. [LINK] [VIDEO]
There are some plausible theories, like RNA randomly crystallizing on a suitable surface. Sooner or later a self-copying one just happened to crystallize by chance, and there was no going back. Fun lecture series: [VIDEO]