I started off doing 3D animation when I was 14, so about 18 years ago. I remember being SO disappointed when I learned what rending was, and that you had to render out every frame of your animation, sometimes for hours before you could see the world you created.
With the light baking, amazing shader pipeline and artist-friendly tools UE4 has we’ve finally been able to break out of that prison 
Unreal 4 is the most inspiring piece of software I’ve used in the last ten years bar none.
Thank you guys!!