“you can’t teach an old dog new tricks.” this old saying refutes paul baltes’ life-span perspective that views development as being "plastic".
Paul Baltes was a psychologist who was brought up in Germany amid the twentieth century. Like the Sphinx, Baltes saw the manner in which that individuals changed all through the total of their lives. To challenge the customary perspective of advancement, he built up the life expectancy viewpoint of improvement, which sees development and change as happening at all focuses in a man's life, and also in a wide range of headings immediately.
Lifelong development is the focal principle of Baltes' life span perspective. It says that individuals keep on developing for the duration of their lives, and that no age period commands improvement. Or maybe, advancement happens all through all times of life.