Error!

Sorry, something has gone wrong. This normally happens for one of the following reasons:

1. Someone has posted a link to their results, and you've followed it here. For technical reasons, links to results don't work.

2. Your session has expired. This can happen if you take an unusually long time completing an activity (for example, if you take a break, and then come back to it).

3. You arrived from a search engine to a page that occurs in the middle of an activity.

4. Your browser is configured to block cookies.

You can restart (or start) the activity here.

Really Deep Thought

The idea of death, the fear of it, haunts the human animal like nothing else; it is a mainspring of human activity - designed largely to avoid the fatality of death, to overcome it by denying in some way that it is the final destiny of man.
--Ernest Becker.