I mentioned earlier that it seems to take half an hour to get from anywhere to anywhere on the metro, no matter how far you’re going or whether you know where you’re going ahead of time—at least to within a small margin of error. Lately, though, I’ve noticed that the errors are all negative, which means I have to concede that the model isn’t actually accurate—for instance, I can consistently get to BSM in about 22 minutes now, and every trip seems to take about that long. Therefore, I have a new model: every trip (regardless of distance or foreknowledge) takes half an hour, minus a minute for every week you’ve been in Budapest.

This seems like a convenient system for Budapest’s inhabitants, and has all the interesting properties I discussed about the previous model. This makes me worry about what’ll happen after 30 weeks, though—should I buy life insurance at the 29th week in case I suddenly accelerate past light speed? Will I start travelling back in time? (Should I start preparing to meet copies of myself from the future, if so?) Or will the entire transit system just break down then and need to be reset? Actually, given the Hungarian budget, that last possibility isn’t so far-fetched. Only time will tell.

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