What do you mean, that it’s not possible?
I think you are joking but I think it’s worth repeating: “becoming a virtuoso” is basically not a real concrete objective, so the question is ill posed in the first place.
In my opinion the only relevant question is how we can best work towards our musical goals.
Since a lot of people automatically equate “virtuoso=speed” it’s worth reminding ourselves what we know about learning how to play fast:
- most people without long-term injuries or disabilities seem to already have “enough speed” in both hands
- playing fast is about learning how to channel that already available speed into musical applications. Here we provide plenty advice on that
- knowledge of the mechanics involved can greatly speed up the learning for step 2
We have several examples of players that were stuck for decades on slow “stringhoppy” motions, and developed speed in the space of a few days just by experimenting and finding a faster motion.
So I think there’s hope for everyone to find a method to play the cool stuff they want to play, you have to work smart and be very clear about your objectives