This Week in Startups Stephen Wolfram on AI’s rapid progress & the “Post-Knowledge Work Era” | E1711
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Mar 31, 2023 
Stephen Wolfram, Founder and CEO of Wolfram Research, dives into AI's fascinating evolution. He discusses neural networks and how modern AI mirrors human brain functions. The conversation touches on the rapid pace of AI development and introduces the concept of the 'Post-Knowledge Work Era,' exploring how AI may reshape jobs and creativity. Wolfram also raises awareness of potential unintended consequences of AI technology, emphasizing the need for careful consideration as we navigate this unprecedented landscape.
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How ChatGPT Works
- LLMs like ChatGPT statistically predict the next word in a text, mimicking human-like continuation.
- This mundane process surprisingly produces human-like output, likely due to similarities with brain wiring.
Neural Networks Explained
- Neural networks consist of interconnected neurons with weighted connections, similar to brain structure.
- Incoming signals on these connections determine whether a neuron fires, passing data to connected neurons.
Word Embeddings and Training
- Words are converted to numerical representations (embeddings), allowing similar words to have similar numerical values.
- Neural net training adjusts weights based on a trillion-word training set to conform to web text statistics.