My research (see aitch tee tee pee colon forwardslash forwardslash kevan dot org forwardslash morningtonia) suggests that you have to shout out the names of stations on the London Underground, like this - Amersham - but I'm not at all sure how one proceeds after that, or what the rules (if any) are, or how (or indeed, whether) it is a game that can be won in the usual sense.
[Kim] Ah, good work! I'll play Aldwych... Oh, except that that establishes an Amersham-Aldwych Loop. Which since it has occurred immediately... there... may... be... no... way... out... of?
You called? Or did you? What does it actually mean to 'call' someone? Can we safely assume that you invited me to come and, compelled by your invitation, I came towards you, or is it that actually I actually pushed you away from myself, but backwards in time?
But what does it mean to be "here". I'm not where you are, as you're occupying that region of spacetime just now that you would describe as "here". But then what do we mean by "now"? And given that the Earth is moving very fast, are there any fixed "here"s?
[Tuj] No - just link away, click 'Stand' or 'Preview' and follow the instructions. As a courtesy: Aldwych Loop. Though this gives me an idea - perhaps I could create a short-cut tag for morningtonia entries...