On the last Tesla earnings call, Elon Musk said that the humanoid Optimus robotswhich the company unveiled last Augustcould be in production by the end of next year and might just help resolve future labor shortages, like the one currently rattling the U.S. economy. https://fortune.com/2022/01/27/elon-musk-tesla-optimus-robot-labor-shortage/ Explain with graphs how the increasing wages (labor hours) will affect the demand for robots. (Hint: relate to the price of the substitute as a demand determinant). What are the implications of change in Robot demand in terms of the price and quantity of Robots? How does this affect investors' decisions?