Classic Who Meta: so what exactly is a Time Lock?
How do you think the Time Lock works? Is it just an inescapable time loop or something else? Do the events of The Time Monster mean you need a TARDIS to build a Time Lock? Do you believe that the Doctor decided to Time-Lock Gallifrey on his own, or do you think that he was following a certain battle plan? How do you think that Toshiko Sato from Torchwood learned to build the Time Lock in Torchwood Tower, as we saw in Journey's End?
(Thanks to wake_the_dragon for this week's topic! Have an idea for a topic, too? Submit it here!)