# Key Points from #hplusroadmap IRC Discussion (September 6, 2015)

• Alternative input methods were discussed, including Datahand keyboards (with expired patents) and EMG-based systems, with participants evaluating their learning curves against potential productivity gains compared to standard keyboards.

• Brain-computer interfaces (BCIs) were analyzed for their current limitations, with participants noting their low bandwidth (few bits per second) and inability to compete with conventional typing methods.

• Non-Audible Murmur (NAM) technology was highlighted as a promising BCI alternative, using specialized microphones on the throat and face to recognize sub-whisper volume speech.

• Project Cybersyn was referenced as an alternative computational model to markets, referring to Chile's 1973 experiment with cybernetic economic planning that attempted to use technology for economic coordination.

• Bitcoin scaling challenges were discussed, including various Bitcoin Improvement Proposals (BIPs 100-105) and the limitations of simply increasing block size as a scaling solution.

• SNARKs (Succinct Non-interactive Arguments of Knowledge) were examined as a cryptographic breakthrough that enables proving code execution without re-execution, with logarithmic or constant-sized proofs.

• The concept of "bootstrapping" in cryptographic proofs was identified as a major advancement enabling sublinear verification, potentially inspired by fully homomorphic encryption (FHE) work.