There are a lot of interesting reasons but for the purpose of this article the one I would like to highlight is the baggage of X86 backwards compatibility. For the first time power efficiency became more important to the success of a CPU than speed. All of the transistors and all of the millions of lines of x86 code that Intel and Microsoft had invested in the PC became an obstacle to power efficiency. The most important aspect of Microsoft and Intel’s market hegemony became a liability over night.
America’s new tribalism can be seen most distinctly in its politics. Nowadays the members of one tribe (calling themselves liberals, progressives, and Democrats) hold sharply different views and values than the members of the other (conservatives, Tea Partiers, and Republicans).
Each tribe has contrasting ideas about rights and freedoms (for liberals, reproductive rights and equal marriage rights; for conservatives, the right to own a gun and do what you want with your property).
Each has its own totems (social insurance versus smaller government) and taboos (cutting entitlements or raising taxes). Each, its own demons (the Tea Party and Ted Cruz; the Affordable Care Act and Barack Obama); its own version of truth (one believes in climate change and evolution; the other doesn’t); and its own media that confirm its beliefs.
The tribes even look different. One is becoming blacker, browner, and more feminine. The other, whiter and more male. (Only 2 percent of Mitt Romney’s voters were African-American, for example.)
The original phrase is It's in a similar vein, which actually started in mines since ores naturally formed long streaming deposits called veins. Miners would use the phrase to effectively communicate the locations of each separate vein. So if a miner uncovered what looked like two different deposits, a senior miner may come down and tell him that one deposit is "in a similar vein" to the other.