- Meta released Llama 2, an open-source large language model that is already instruction-tuned and available in multiple parameter sizes (7B, 13B, 70B).  
- A public demo of the 7-billion-parameter chat-tuned version is accessible at https://llama.perplexity.ai/, letting anyone experiment with the model immediately.  
- Discussion referenced a PLOS ONE paper showing that pigeons can be trained to detect breast-cancer pathology and radiology images with accuracy comparable to human observers, prompting jokes about “better than missile guidance.”  
- The channel’s excitement centered on the implications of an unrestricted, commercially usable LLM for open-source AI research, bioinformatics, and transhumanist augmentation tools.