Yes, lucid dreams are like video game rendering. Happened to me a few times. 

I realize I am in a dream when I see repetitive dreams or dead relatives. Then trying to take advantage of this, I attempt to fly, sometimes I achieve sometimes I can't go up that much. 

Last time I could flew really fast while I was also afraid of electric transmission wires in the air 😃 

Very profound connection with fingers of AI!! But I think in AI it is pattern recognition screwing up. 

I sometimes think meat space is just an anchoring for our crazy minds. If mind couldn't find an anchor it would go mad really fast like constantly generating new data could eventually hurt it! What do you think?