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I combine the topics Locality and Telescope to design the special postcards. The distance from the sun and the earth is 9300 miles, which means only 8 light minutes. And the distance between us and our hometown is even closer, which means we are close to each other.
I sent these postcards to my friends and put their hometown on the front side and I want to know the distance between me and them, so I write the little question on the back side that '____ light minutes you think between you and me' and I got some interesting feedback from them. The distance and communication are both objective and subjective.