&gt;&gt; Long-term opportunities that are easily defendable with minimal effort are extremely rare in the tech startups field.<p>I used to buy that. Then I started looking around:<p>1) What&#x27;s McAfee today that it wasn&#x27;t 30 years ago?
2) Windows 10 is a slightly newer look with small WinRT runtime (which may have come from WinCE I don&#x27;t know) but most of the software underneath is the same code running for over 2 decades as it looks to my eyes.
3) SereneScreen fish screensaver, has it changed much?
4) How many years has Skype been around?<p>Put some lipstick on the pig and if it ever sold at all, software is renewable.<p>Also your restaurant analogy isn&#x27;t really fair, it takes a lot of work every day to keep a popular restaurant popular regardless of location.<p>&gt;&gt; Now thousands of people are going to see what you&#x27;re doing, and dozens are going to try to clone you, many of them far better connected than you are.<p>Linux is better than Windows yet what runs on most desktops?
OS&#x2F;2 was far, far better than Windows yet Windows is still on desktops because IBM stopped selling OS&#x2F;2 (and PC&#x27;s for that matter); not because people would not still be buying it but because they are more interested in selling mainframes (which were supposed to be dead by now).