Um, Steam's In-House Streaming is AMAZING!

So last night I needed to log into ARK periodically a few times but didn't want to keep going down to my office so my plan was to just fire up the ARK Client on my Macbook and do what I needed to quickly there. Unfortunately since the Macbook isn't really geared for gaming it doesn't run very well so I would never actually "play" the game from it.
Well when I launched Steam, instead of a "Play" button on the ARK game page, it said "Stream"...
It launched ARK on my gaming PC then just streamed it to my Macbook! I had no clue Steam could do this so forgive me if I'm just being a n00b here but I was seriously impressed. It was like sitting at my PC, just with a smaller screen. No lag, no issues, totally worked. I was really impressed and now I might catch myself gaming on my Macbook while casually chilling in the livingroom or by the pool now.
Well when I launched Steam, instead of a "Play" button on the ARK game page, it said "Stream"...
It launched ARK on my gaming PC then just streamed it to my Macbook! I had no clue Steam could do this so forgive me if I'm just being a n00b here but I was seriously impressed. It was like sitting at my PC, just with a smaller screen. No lag, no issues, totally worked. I was really impressed and now I might catch myself gaming on my Macbook while casually chilling in the livingroom or by the pool now.