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On a deeper level, the garbage can can also symbolize the decision-making processes that permeate our personal and professional lives. The Garbage Can Model, developed by Cohen, March, and Olsen, describes organizational decision-making in unpredictable environments. In this model, choices emerge not from a clear process of rational thought but rather from a convergence of problems, solutions, participants, and choice opportunities. In many ways, this mirrors the randomness and chaos of our reality. Decision-making often feels like rummaging through a garbage can, sifting through the detritus of competing priorities and urgent issues, and trying to find the right path amid the noise.
the garbage can

Civil engineers in Rome invented the concept of underground sewer to rid their cities of plagues caused by human contact with waste. Their water sources that they used for consumption were also contaminated as they served as open sewers. The underground sewers made sure that that waste stayed out of reach of humans and was deposited by these sewers further downstream. For periodic cleaning, they also provided access ways that were covered with stone lids that we call manholes today. Incidentally, these stone access way covers are still seen in Jerash, Jordan which was a Roman city in the old days.