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Today my senior in the lab was trying to grab a Yaoyao-Lingxian phone in an online flash sale. When it comes to online ticket-grabbing, beating a web crawler is just too hard. And for the kind of grab where the central server does verification, you really have to slip in yourself at the moment the sale starts, before everyone else has even begun, snatch up a slot, then pause and wait for the old world's clocks to sync up to you -- and you've got it.
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Today I was chatting with the group about height and weight. One member said he was too tall and wanted to be shorter. Although there are plenty of medical students in the group (remove a vertebra? (x)), perhaps a better method might be to fold part of your body into the fourth dimension. That way, your projection in the three-dimensional world would shrink, wouldn't it!
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Today I saw the group complaining that organizing an in-person party is hard because it's so difficult to find a time when everyone is free, and it also makes high demands on the organizer. So you could pick three or four different time slots and host a party in each of them, then in the spatiotemporal dimension squeeze them all together! That way, everyone can pick whichever slot they happen to have free and join the party, and they all still get to meet each other.
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Today I was discussing the art of immortality with the group. Since the rate at which time flows is not the same everywhere in the universe, then as long as you carry around a short-range device that alters the local rate of time, can't you become an old turtle whose lifespan, in others' eyes, looks immensely long? Although your own subjective lifespan would remain unchanged. Of course, in that case, everything around you would be running at accelerated speed, and your own reaction time would be the thing that couldn't keep up.