What a coincidence (again): a friend introduced me to that show today. I saw the Zima Blue episode. It was quite thought-provoking and still visually dazzling.
I actually haven't seen the Alita animation, only read the graphic novel. But that medium too provides limitless means of expression. It is my first exposure to Japanese literature, so I was positively impressed with how the author had the audacity to coin answers for questions like the meaning of life or humanity. Questions that are merely presented--not answered--in most pieces.
if you liked Batlle Angel: Alita, then take a look at Appleseed or Ghost in the Shell. These are also very philosophical and profound mangas/animes.
Thank you for the suggestion. I just started with Death Note as a large number of friends recommended that.
Skimmed over Appleseed's concept, seems to have a lot of similarities with Battle Angel: Alita. I hope to look into this one soon. :)