Too bad he wasn't online when I did this.
Basically what the below image says is that the pony thread will pass the TC thread for 10th most posted in topic in 217 days from the pony thread's first post (t+0), which is April 1, 2012. This is assuming nothing else passes the TC thread and knocks it to 11th and that both topics continue at a similar speed they have gone their whole lifetime.
Mudkipz, who said you couldn't use WolframAlpha?
Mudkipz's topicWe'll see how well they both work out in the long run, if we even remember.