When you hold a hammer, everything looks like a nail.

parable of a human bug that falsely assumes that once it has a solution, all problems should be solved by that solution.

Of course, whether solution A should be used depends on the subject. You should have more than one solution and choose the appropriate one depending on the subject.

• Screws should not be hammered in with a hammer, they should be tightened with a screwdriver.

This is to give you more options, so you can get into another human bug that stops you wondering which one to use because you have too many options. Jam Experiments

Development of a parable

• You don't have a hammer, but you see someone hammering a nail with a hammer and you think you must hammer a nail too, so you hammer a nail with your fist.
• Making oden with a saw. You could make it, but it's not suited for you.
• I think it would be very useful if the saw could drive nails! I'm sure it would be if it came at no cost, but do we really need it?"

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