1) the capture of all the musical and performance input (a wind controller, etc)
2) the transmission of all that information in real-time without latency
3) the conversion of that information into the appropriate sound.
Midi is only part 2 of that - advances in other areas are needed for a fully convincing facsimile, but given the incredible improvement in sample-based libraries over the last 10 years or so (and even more so comparing something like a Spitfire Audio library to a synth string patch), it is possible that will be the case, given the investment of time, brains and money.
1) the capture of all the musical and performance input (a wind controller, etc) 2) the transmission of all that information in real-time without latency 3) the conversion of that information into the appropriate sound.
Midi is only part 2 of that - advances in other areas are needed for a fully convincing facsimile, but given the incredible improvement in sample-based libraries over the last 10 years or so (and even more so comparing something like a Spitfire Audio library to a synth string patch), it is possible that will be the case, given the investment of time, brains and money.