Lines 242-255: What comparison does the author make? How do the ideas presented in these last paragraphs of the article connect to the authors central idea?

explanation:

shower, toothbrush, toasters, refrigerators,   and the lights

you use the lights to see and brighten a room. and with out them you cant see. you need a toothbrush to clean your teeth with out it stinky breath. shower to wash ya self and without it you stink. toaster to toast stuff without it nothing is toasted. and the refrigerator to keep stuff cold without it everything goes bad

may i see the historical information and the excerpt?