My take on the origins of the field is that defining Quantum Computers was an outgrowth of trying to get at a "quantum observer" to make some headway in "unders

My take on the origins of the field is that defining Quantum Computers was an outgrowth of trying to get at a "quantum observer" to make some headway in "understanding" quantum physics. I also feel it's a way to make the many-worlds interpretation of Quantum Physics more substantial - I mean, when you have a working QC, if the results of the computation isn't arising from interference between the many worlds, where are the calculations being done?