Without a hammer, not even a nail looks like a nail.
If you don't have the means to solve a problem in hand beforehand, when you see a problem, you cannot understand what means are used to solve that problem
from /villagepump/not what I want to make.
To someone with a hammer, everything looks like a nail. /villagepump/nishio.icon
Without a hammer, not even a nail looks like a nail.
This is nice./villagepump/mtane0412.icon/villagepump/takker.icon/villagepump/くま子.icon
Moreover, since if all you have is a hammer, it is a good match, since it can be derived that you should have as many solutions as possible.
relevance
When you hold a hammer, everything looks like a nail.
When you hold a hammer, everything looks like a nail.
Number of options and quality of decision making
Without hammer, nail (i.e. small metal spike) doesn't even look like a nail
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