MightyMait writes "With my 40th birthday coming up, seeing this article makes me happy I have a good job (and a little wary of having to find another). From the article: '[T]he start-up ethos extols fresh ideas and young programmers willing to toil through the night. Chief executives in their 20s, led by Facebook founder Mark Zuckerberg, are lionized, in part because of their youth. Many investors state bluntly that they prefer to see people under 40 in charge. Yet the youth worship undercuts another of Silicon Valley's cherished ideals: that anyone smart and driven can get ahead in what the industry likes to think of as an egalitarian culture. To many, it looks like simple age discrimination - and it's affecting people who wouldn't fit any normal definition of old. "I don't think in the outside world, outside tech, anyone in their 40s would think age discrimination was happening to them," says Cliff Palefsky, a San Francisco employment attorney who has fielded age-discrimination inquiries from people in their early 40s. But they feel it in the Bay Area, he said, and it's "100 percent due to the new, young, tech startup mindset."'"