immortality backup hacks in VR
reality on disk
I was thinking about virtual machines running reality, not so much just the conversion from physical molecular data into data on a computer but more the creation or assembly of such data into physical shapes. It may come at a huge expense, it may be easy. The data could be acquired in an-as is state not taking the object apart, that way it doesn't need to be reconstruction entirely.
Of course for humans to enter such world would be as simple as a 3D mask. The experience determines if it's real or not. Virtual reality may appear very real even indistinguishable if done right. Real-time transfer of thoughts from body to machine seems easier as the other way around. If the software makes it looks real enough the module ran by the software is still to be considered to be a real person! he/she/it can still identify him/her/it self etc