title: Why is Objective-C not very popular outside of the Apple community?
body: <p>I know that the Apple community – including Mac and iPhone developers – mainly use Objective-C for their development language. But it seems that not many people use Objective-C outside of the Apple community, such as in the Windows or Linux worlds.</p>
  
  <p>What are the possible reasons that Objective-C is not particularly popular outside of the Apple community?</p>