Most revolutions in artificial intelligence arrive with noise, large numbers, and even larger promises. Yet this one began quietly, with a modest question: what if smaller models could remember better? Based on “Advancing Semantic Caching for LLMs with Domain-Specific Embeddings and Synthetic Data”  arXiv preprinthttps://arxiv.org/abs/2504.0226 The breakthrough did not come from a trillion-parameter system but…