In this context what is improvement?? I think we can answer this by looking at one of the key core principles of chi running namely a practice orientated approach. In Matthew Syed's book 'BOUNCE' he uses a key phrase namely 'purposeful practice'.
The key issue with a practice is a sense of progress and improvement no matter how small. Descarte uses the term 'soft machine' as a description of the human system; this is entirely true as we are an organic and, sadly, dying animal that needs to constantly look at the working of our machine and apply changes such as feeding, exercise, cognitive and emotional inputs to ensure our system is in balance.
So if we do not focus on improving our lives then perhaps we fall into emotional, physical and cognitive entropy. That is, we simply fall apart and use less and less of our internal systems and end up existing in the basic sense.