bond-market , brothers , Business , Business / Artificial Intelligence , Business / Big Tech , Business / Companies , Business / Computers and Software , Business / Markets , Business / Social Media , business-idea , business-insider-today , business-strategy , Careers , CoECI News , E! Insider , Energy & Environment Newsletter , entrepreneurship , Finance , Gaming News Roundup , Gear / Gear News and Events , Global , Global Precipitation , global warming , globalstar , HEALTH , Home , House , hustle-culture-big-bet , insider-picks , insider-picks-guides , insider-reviews , insider-reviews-2021 , insider-today , job-market , Markets , Markets & Festivals , News , newsletter , Newsletters , Nexstar Media Wire News , People News , Personal Finance , personal-finance , Photovogue / Editorial / News , Politics / Politics News , Property / News , Reviews , reviews-rit-ads , Security / Security News , shop , Shop Beauty , side-hustle , Small Business , small-business , teens , young-founders July 13, 2026 Kirk McKinney was riding his bike near his home in Massachusetts about six years ago when he came across a gold mine: a dumpster full of trash, sure, but also speakers and electronics. “Someone had thrown away this perfectly good pair of speakers,” he told Business Insider. “I asked the guy at the landfill if
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