Add more language highlights

posts/2020-08-20-the-onyx-programming-language.md

@@ -768,6 +768,8 @@ Incapsulation at its finest!
 
 ### More Highlights
 
+Some more highlights of the language's features:
+
   * SIMD vectors and matrices built-in with literals.
   It looks like this:
 
@@ -861,6 +863,39 @@ Incapsulation at its finest!
     end
     ```
 
+  * `Any` real type implies a variant of all possible types.
+  In practice, it is often constrained by an imaginary type to reduce the number of contained options and define behaviour.
+  For example:
+
+    ```text
+    trait Logger
+      decl log()
+    end
+
+    class Processor
+      # Stores a variant of all possible
+      # `Logger` implementations.
+      let logger : Any~Logger
+
+      def process()
+        # This is still any logger
+        logger : Any~Logger
+
+        # Thanks to its imaginary type,
+        # can call the declared method
+        logger.log()
+      end
+    end
+
+    struct MyLogger
+      derive Logger
+        impl log()
+          # Some implementation
+        end
+      end
+    end
+    ```
+
 ----
 
 I could continue digging into Onyx features and examples, but for an introductory post, that should be enough.