His doing so had nothing to do with Hubble being less blunder-prone; nor was Einstein deferring to Hubble’s superior prophetic abilities. It was just that the problem that the term was intended to solve no longer existed.
随后在1929年，埃德温·哈勃发现宇宙正在不断膨胀，而且以当时的观测精度看来该发现与修正前的广义相对论相一致。于是爱因斯坦又舍弃了宇宙项。他这样做并非因为哈勃以甚少犯错著称；也并非臣服于哈勃的超凡预测能力，只不过因为这一宇宙项所试图解决的问题已经不存在了。