What makes the arXiv-versus-news split consequential is not the sentiment gap itself but the distribution asymmetry underneath it. Academic papers on AI trading circulate among researchers and quant practitioners; the automated signal posts and crypto IRA launches [3][4] circulate among everyone else. Bank of America's own equity strategy team acknowledged that , describing AI as a potential 'double-edged sword' that could cannibalize margins — a framing that does not appear anywhere in the retail-facing AI finance posts that dominated Bluesky on…