Earlier quoted context omitted.
> We have no evidence that superintelligence will be developed. Fundamentally, we have no evidence of anything that will happen in the future. All we do is to extrapolate from the past through the present, typically using some kind of theory of how the world operates. The belief that we will eventually (whether it's this year or in 1000+ years), really only hinges on the following 3 assumptions: 1) The human brain is…
> Assumption 3 is mostly techno-optimism, or an extrapolation of the trend that we are able to build ever more advanced devices. This is your weak link. I don't see why progress will be a straight line and not a sloping-off curve. You shouldn't see the progress we've made in vehicle speed and assume we can hit the speed of light.
Technological progress often appears linear in the short term, but zooming out reveals an exponential curve, similar to compound interest.
> You shouldn't see the progress we've made in vehicle speed and assume we can hit the speed of light.
Consider the trajectory of maximum speeds over millennia, not just recent history. We've achieved speeds unimaginable to our ancestors, mostly in space—a realm they couldn't conceive. While reaching light speed is challenging, we're exploring novel concepts like light-propelled nano-vehicles. If consciousness is information-based, could light itself become a "vehicle"?