Text can be a carrier for any type of signal. The problem gets reduced to that of an interface definition. It’s probably not going to be ideal for driving cars,

Text can be a carrier for any type of signal. The problem gets reduced to that of an interface definition. It’s probably not going to be ideal for driving cars, but if the latency, signal quality, and accuracy is within acceptable constraints, what else is stopping it? This doesn’t imply that it’s ideal for driving cars, but to say that it’s not capable of driving general intelligence is incorrect in my view.