Someone created a hologram Cortana

Cortana, the A.I. from Halo and Windows 10 is a thing that halo players/w10 users speak to and ask for things. For example I want to know the weather, I'll just ask Cortana. It's not the best thing with A.I., but it's still good.
Now, there is a fan who liked a lot the Halo series and he is also an engineer so he decided to make a hologram.
He used a windows10 system with 4gb ram and a lot of hours. His project is named "unt1tled" and everything we need to known is in the video below.
Someone once said "the future is now" and I thing yes, it is.