Well “that are small enough to successfully navigate” seems important. Trying to lift something that is too heavy for you to actually lift does not generate much of an opponent process, but repeatedly practicing with one you can (just barely) does.
Well “that are small enough to successfully navigate” seems important. Trying to lift something that is too heavy for you to actually lift does not generate much of an opponent process, but repeatedly practicing with one you can (just barely) does.