You're Being Tortured In The Morning

There is no need for much of a preamble here, except to say this activity deals with some of the issues thrown up by British philosopher, Bernard Williams's journal article "The Self and the Future", which first appeared in The Philosophical Review in April 1970.

The other thing to say is that you should read the instructions on the next page quite carefully. You'll be able to complete the activity if you don't, but the conclusions likely won't be valid.

Really Deep Thought

To command the professors of astronomy to confute their own observations is to enjoin an impossibility, for it is to command them not to see what they do see, and not to understand what they do understand, and to find what they do not discover.
--Galileo.