And 15 years ago, more and more bought photovoltaic cells to generate their own energy and recently buy electric cars. It&#x27;s probably a cycle.<p>We had mainframes with timesharing OS and terminals. Then with desktop PCs everyone got a computer. With cloud computing and video streaming we are back to centralised computers. On the otherside there are more and more who use peer-to-peer software, blockchain technologie and want localized solutions. It&#x27;s probably a cycle.