[2] While sending bitcoins to another person for payment, the receiver would display the QR code and would help the person to scan the code. Upon scanning, the app should get a confirmation from the blind person voice for sending the payment. May be the same voice should be used to send payments? Kind of this works in real time!
[3] While receiving payments, the app should again use speech-text model to use the blind person speech to provide QR code. Once the sender sends the money, the app should intimate the money received through an automated bot voice.
I agree with you that voice recognition is the best way out for the blind with bitcoin investment intent but, still the issue of safe transactions is always going to be an issue, having a third party supersede over all your transaction process puts you directly in the way of harm as, you just might not be so sure of what volume is sent or received at any point but, there could be a way out.
The programmable bot that goes by the name Siri is widely used now in many appliances and technological innovation and has been known to be quite useful and efficient in voice recognition and command, it could offer some possibilities but still, the issue of security poses a threat that can't be over emphasized.
Do you think they are just limited to use cryptocurrency? They aren't limited to use fiat? Isn't complicated for them to maintain a bank account and ATM cards?
You have a point there but, the fiat can be easily analyzed and identified by a blind man. It might interest you to know that, in situations of disabilities, other parts of the body is developed to fill in the function of the missing parts. Blind people's touch or sense of feel, hearing and mind works like magic (If i may borrow that word). So, having fiats stationed for them in a particular pattern, lets say, arranged according to a particular bill and placed differently, the shape volume and pieces they touch makes meaning to them and they could from there calculate how many they've spent and balance off. Not necessarily going to the ATM at any point to transact.
Technology developing day by day, perhaps there would be something where everyone would use Bitcoin once a day. But we shouldn't blame Bitcoin for that. It's just a matter of Technology.
Perhaps one day, there would be such advancement in the system to accommodate them and no one is blaming bitcoin for being bitcoin. You know, at some point i wondered, if bitcoin were to have a tangible physical form and i had to call myself back on the note that, at this point, it stops being a cryptocurrency. It assumes the fiat system of function like mare debiting one account to credit the other while in a network of systems.
Then again, it's just feels so sad that though willing, some can still be left out!