In the "Subject be too adj to V" construction, there seems to be no need to use a pronoun as the object to the verb:
- The box is too heavy to lift. (natural) 1'. The box is too heavy to lift it. (unnatural)
The subject "the box" is the semantic object of "lift". But one Australian inserted "it" in the following:
- Life is too short to live [it] in the same way, so you should do something different once in a while.
The intended reading is "life is too short to live repetitiously." So this "it" in #2 is dubious; it doesn't pattern with #1.
Do you have an explanation?