title: Clarifying RxJava Observable Threading with Retrofit
body: <p>At <a href="http://square.github.io/retrofit/" rel="nofollow">http://square.github.io/retrofit/</a> where it talks about asynchronous, there is a phrase "Observable requests are subscribed asynchronously and observed on the same thread that executed the HTTP request" where I wanted to clarify.</p>
  
  <p>So in this case which thread that actually will execute the Http Request: Lets say main thread makes a call to Observable getUserPhoto(@Path("id") int id)? Will it be the main thread or thread that subscribe the request that execute the http request?</p>