他的理由是，每个人在早期快速学习阶段都会碰壁，“预提交”20个小时是避免碰壁和成功学习一门新技能的必经之路。
His reasoning is that everyone will hit a wall early on in the rapid learning stage and that "pre-committing" to 20 hours is a sure-fire way to push through that wall and acquire your new skill.
他的理由是，每个人在早期快速学习阶段都会碰壁，“预提交”20个小时是避免碰壁和成功学习一门新技能的必经之路。
His reasoning is that everyone will hit a wall early on in the rapid learning stage and that "pre-committing" to 20 hours is a sure-fire way to push through that wall and acquire your new skill.
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