What distinction are you making between self-improvement and self-modification? Trivially, an improvement is a change, that is, a modification. So presumably you mean something else by modification.
I was trying to get at the distinction between training yourself to run faster so you can get to work faster (self-modification, ie modification targeted at the self) versus telecommuting (self-improvement, ie improvement of the self).
What distinction are you making between self-improvement and self-modification? Trivially, an improvement is a change, that is, a modification. So presumably you mean something else by modification.
I was trying to get at the distinction between training yourself to run faster so you can get to work faster (self-modification, ie modification targeted at the self) versus telecommuting (self-improvement, ie improvement of the self).