Those are certainly real problems, and I'm not a cell biologist, but I'm not convinced these problems are insurmountable.
For instance, it might be possible to use ECC to get around transcription errors. It could also perhaps be ensured that any rogue "clinical biocomputer" could be easily treated with antibiotics or specifically engineered bacteriophage virus.
Like I said, the technology is very far off from having real world applications like this. At the moment it feels like we're in the analogue of the 40s and 50s for conventional computing. The field is still just inventing the very basic building blocks. It's going to be very limited in use, wildly dangerous(look up mercury delay lines) and unreliable for decades to come.
For instance, it might be possible to use ECC to get around transcription errors. It could also perhaps be ensured that any rogue "clinical biocomputer" could be easily treated with antibiotics or specifically engineered bacteriophage virus.
Like I said, the technology is very far off from having real world applications like this. At the moment it feels like we're in the analogue of the 40s and 50s for conventional computing. The field is still just inventing the very basic building blocks. It's going to be very limited in use, wildly dangerous(look up mercury delay lines) and unreliable for decades to come.