What proportion of large corporate CEOs (and other C-People) are within 5-10 years of retirement. And what does that do to their ability to think long term, embrace social media and look at Green Tech solutions? This thought prompted by http://www.greentechmedia.com/articles/read/why-conservatives-are-bad-on-energy-its-all-about-the-costs and http://mashable.com/2010/08/30/ceo-social-media-future/