Higher frequencies, as bats use, give finer resolution. This seems impossible for humans, but since we have cochlear implants, there's no reason they couldn't respond to a shifted audio spectrum. Or, just have an external hearing aid that frequency-shifts the sounds (and cancels out the original), together with a higher-frequency sound source.
OTOH, eye implants are probably not that far off.
> Just the auditory cortex of a human brain is many times larger than the entire brain of a bat.
This really startled me. It seems plausible that we could do as well, with early training etc. Plus, I imagine that some of the higher-order processing of the occipital cortex would also be seconded.
If you're interested in reading more about pushing the limits of remapping the human brain, check out The Brain That Changes Itself by Doidge. Fascinating.
OTOH, eye implants are probably not that far off.
> Just the auditory cortex of a human brain is many times larger than the entire brain of a bat.
This really startled me. It seems plausible that we could do as well, with early training etc. Plus, I imagine that some of the higher-order processing of the occipital cortex would also be seconded.