See how much of the following sequences of letters and numbers you can memorize in the next 20 seconds:
- T, E, X, A, S, O, H, I, O, V, E, R, M, O, N, T, R, H, O, D, E, I, S, L, A, N, D
- 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41
Done yet?
Now, imagine that you were blindfolded and asked to recite them to someone else.
How well do you think you would do?