Here’s the solution to the Eiffel Tower puzzle from Adam Exx Leviticus. You might remember that the question was:
The Eiffel Tower is 300 metres high. Let’s pretend that you could place it in a totally flat, featureless landscape and that you are standing five hundred metres away looking at it. Suddenly it shrinks to a third its size, so that it is now 100 metres high. Under what conditions would you not be able to tell that it had shrunk?
The answer is you wouldn’t know it had shrunk if you had shrunk by the same amount at the same time.
Adam encounters this in Leviticus. We relate the size of our universe to the size of our bodies. If our bodies are small enough, then our universe could fit into a matchbox. It happened!
Read all about it in the Adam Exx trilogy