The reason GT’s numbers admit rates have plummeted are due to the explosion in applicants since 2012 or so but with no real increase in class size. GT had 14,124 applicants in 2011 and 35,600 this year. Class size is the same so naturally admit rates are plummeting. The causes for this invite argument, but I think the relative value of GT vs other OOS engineering programs and equivalently prestigious privates have been a huge driver.