Certainly. We're near the top of the computational capacity for silicon chips. However, the computational capacity of a cubic centimeter of our universe is mi

Certainly. We're near the top of the computational capacity for silicon chips. However, the computational capacity of a cubic centimeter of our universe is mind bogglingly enormous, what we can do now is a drop of water in the ocean (or much much smaller). There are lots of other ways to compute and many of them in active development. Folks have been saying exponential growth is over for many decades now. It may have slowed in some ways or growth might be going in different directions, but it's still growth and I see no signs that the end is near or we're close to a major longterm slowdown of growth.