But also, this criticism is not entirely ad hominem anyway: I do indeed have a less detailed idea of how hard some techn但无论如何，这种批评也不是完全从个人偏见出发：我确实对某些技术的发展难度，比做相似事情的、有实验室经验的人，知道得较少。
Debaters should avoid ad hominem arguments that question their opponents' motives.参加辩论会的选手应避免怀疑对方动机的不理性的争论