The man who practically invented alter egos has departed planet earth.RIP, David Bowie, whoever you were; and thanks for the memories:From Happy Anniversary Hub!Around here, where alter egos abound, we’ve been Bowie fans for a long time. Remember this golden oldie, still gracing my sidebar, from my early days as Lady M’s Mirror Of The United States: Just think, without Ziggy Startdust, there might never have been a Madonna, Lady Gaga or President Obama. Not that there’s anything inherently wrong with alter egos…butt I guess there’s a downside to everything. Dedicated to the proposition that change can be a good thing,...