MakeUseOf Answers is a Q&A forum. Our community solves your questions about anything related to the Internet and computers. It's free. Ask A QuestionQuestions tagged "technology explained" All questions Resolved Unresolved Why did my post dissappear from Facebook? Why does the blue light next to the power button blink on a Windows PC? What is so special about Silicon Valley? Why did my website suddenly lose almost all traffic? Why is my computer taking so long to start up and shut down, and what does this error message mean? Would a Chromecast be of any benefit if I already own a Smart Samsung TV?