yourquant_rick on Instagram: "The limitations of machine learning (ML) in financial forecasting, emphasizing the dangers of overfitting, model fragility, and data dependency in non-stationary markets. Morty’s excitement over an AI model achieving “99.999% accuracy” encapsulates a common pitfall in quantitative research—mistaking in-sample performance for genuine predictive power. Rick’s response highlights that such precision typically signals a model that has memorized historical noise rather t