can someone help me on these two questions? thanks a lot!

(3) 5 points It would seem that a higher Steady State level of Y/L (y*) and K/L (k*) is a good thing. We know that a high level of s leads to a higher Steady State. Show with diagrams why a rate of saving of, say, 80 or 90 percent may not be so good as far as the people in the economy are concerned. (4) 5 points How would you distinguish overall change in technology in the macro-economy from the technical change embodied in a rise in worker effectiveness? If worker effectiveness gives rise to sustained increases in the economys standard of living, even in the Steady State, can the overall level of technology impact the result as well