I disagree. A keyboard enforces a clarity and precision of information that does not naturally arise from our internal thought processes. I'm sure many people here have thought they understood something until they tried to write it down in precise language. It's the same sort of reason we use a rigid symbolic language for mathematics and programming rather than natural language with all its inherent ambiguities.
5 years ago, almost everyone in this forum would have said that something like GPT-5 "is probably further out than the lifespan of anyone commenting here."
It has been more than 5 years since the release of GPT-3.
GPT-5 is a marginal, incremental improvement over GPT-4. GPT-4 was a moderate, but not groundbreaking, improvement over GPT-3. So, "something like GPT-5" has existed for longer than the timeline you gave.
Let's pretend the above is false for a moment though, and rewind even further. I still think you're wrong. Would people in 2015 have said "AI that can code at the level of a CS college grad is a lifespan away"? I don't think so, no. I think they would have said "That's at least a decade away", anytime pre-2018. Which, sure, maybe they were a couple years off, but if it seemed like that was a decade away in 2015, well, it's been a decade since 2015.
it really just needs to let me create text faster/better than typing does, i'm not sure it needs to be voice based at all. maybe we "imagine" typing on a keyboard or move a fantom appendage or god knows what