Data scaling has been successful in NLP and CV, but its effectiveness in robotic manipulation needs further exploration.
Task diversity is more critical than the quantity of demonstrations, aiding transfer learning to new scenarios.
Multi-embodiment pre-training data is not necessary for cross-embodiment transfer; models trained on single-embodiment data can efficiently transfer to different platforms.
Expert diversity, influenced by individual preferences and human demonstrations, can hinder policy learning; a debiasing method called GO-1-Pro addressed velocity ambiguity, resulting in significant performance gains.