In a virtual world where physics operates on different principles, a digital consciousness could eat virtual food, fly, travel to planets, or pass through walls. 

Limitations? Only those imposed by technology and the current state of knowledge. Associate Professor Dobromir Rahnev from the Georgia Institute of Technology’s School of Psychology does not rule out this possibility.

“Theoretically, mind uploading is possible. However, we are currently very far from this goal,” he writes in The Conversation.