The exhaust fan in the bathroom had been rattling for over two weeks — not loud, more like an insect fluttering inside the ceiling. I put it off until the weekend, then carried a stool in and took the cover off. The blades had a layer of greasy dust caked on one side; the weight was off balance. I washed it, put it back, and twenty minutes later the noise was gone.
Only while taking it apart did I realize how simple the thing was: one motor, one set of blades, two screws. And until those twenty minutes, I knew nothing about it. It had been spinning above my head for three years and I had never once looked at it properly.
Through those two weeks of delay I had in fact been running a different calculation: the same model online for sixty-eight yuan, free shipping, here tomorrow. Half an hour to take apart, wash and reassemble, with a decent chance of not getting it back together — why bother. The arithmetic was sound. It just left one term out: the moment the hum stopped, I felt pleased. That pleasure had very little to do with the sixty-eight yuan.
Our generation has been trained into a remarkably uniform response to “broken”: replace it. It is not simply laziness. Goods are cheap and labor is dear — one visit from a repairman costs half a new unit; and manufacturers increasingly design against repair, with glued housings, odd screws, and parts that are not sold separately, so that opening a thing is close to a death sentence. This is the output of a whole system of costs, not a plot against you. So I will not dress repair up as a virtue. On the balance sheet it is often simply a bad deal.
But there is another ledger that has nothing to do with money. Take a thing apart and you learn how it works: the fan whined because the rotor’s weight was off center; the tap drips because that rubber ring has aged. None of this is in the manual, which only teaches you which button to press. After you have opened it once, your relation to the object changes — it stops being “a product” and becomes “this thing of mine.” I have a bicycle I have ridden for nine years. The chain has snapped twice, the rear wheel has been replaced once, and now I can identify every odd sound it makes; eyes closed, I know which screw to turn. That familiarity is not something you can buy by wheeling a new bike out of the shop.
Still, I have to guard against the opposite extreme. Some things should not be repaired: anything live with electricity, anything carrying gas, anything load-bearing — saving that money with your life as collateral is a bad trade. Some things have parts long out of production, so that repair leaves you with an empty shell. More important is telling two kinds of “I can’t let it go” apart: one is fixing it because you will keep using it, the other is refusing to admit it is finished. The first is craft; the second is attachment. The test is crude — ask yourself, if it were fixed tomorrow, would I still use it? If you cannot answer, throw it out.
Repairing things looks like a small matter, but it does turn a “consumable” back into an “object.” A consumable has no history: use it up, discard it, no debts either way. An object has wear, has patches, has the marks of your hands on it. A person with a few mended things at home understands the word “own” a little differently — not as possession, but as care.
That fan is turning quietly now. I know the grease will build up again in a couple of years. When it does, I will take it apart again.
卜世 撰

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