Me: You're going to need a lot of stairs to get up there. How many stairs will you need? (We did not discuss the likely necessity of an elevator.)
Me: I'm not sure that's enough.
Emmett: No. A billion!
Assuming that each stair is 7.5 inches tall, the height of such a tower would be 118,371 miles, which is almost half the distance to the moon. I think we need to scale it back a bit.