Yes I Understand How LLMs Work

# Summary The author argues that the widespread claim that "nobody understands how LLMs work" is false and misleading, noting that thousands of researchers and practitioners who have studied and built these systems understand their mechanics. LLMs are deterministic mathematical systems—not magical—with fully traceable operations including tokenization, matrix multiplications, attention calculations, and parameter adjustments that can be inspected, modified, and continuously improved. While no one understands every detail of every model, this standard applies to all technology fields, and the claim fundamentally misrepresents the actual state of LLM interpretability research.