A design can convince people when it works, and have paid attention to details. With a great attention of detais and empathy, design can promote humanity.
I posted Timothy Prestero’s baby incubator, he said “There’s no such thing as a dumb user. … There are only dumb products.”
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The top and bottom light make sure baby can receive phototherapy if mothers put a blanket on top, unlike the traditional one, which avoided mother and baby’s connection/bonding, now, mums can touch their babies whenevern they want.
So other than functioning well, and to be convincing, the design object has to fit the details of the users, and we called it attention to details.
Q drum, a simple design, it works well in the rural part of Africa, it did not cost a hugh amount of new technology or calculation. However, we can see the detailed mind of the designer.
Details is not not just small, tiny, complicated, or high tech. Detail is understanding, is empathy. Because we understand, we design somthing with a good cause, which should help to improve not just problems, but putting humanity forward.
My perspective my way 