Actually, a lot of those quotes were taken out of context. And in any event, you're argument, is, at best specious.
No one is saying that "in the future", pay attention to that part, this type of cleaning can not work, just the current fluffing with a spinning brush that fails to extract in a meaningful way, is not an effective tool for actually cleaning.
Try to keep it straight, obfuscation is tool of the person who is losing the argument, and is trying to change it.
I can answer the computer quotes, and all of them were brilliant men.
Thomas Watson Sr. was actually running the company that created the first mechanical computer, and his quote is taken out of context.
When Ken Olsen said that there was little reason for a computer in anyone's house, there was essentially no reason for a computer in anyone's house. He never said there never would be. He exaggerated a little, because there were microcomputers out then, and they were slightly useful at home, and a lot of fun (there were games, of course). Keep in mind that Olsen's ideas for the DEC computers like DMA, etc... are fundamental parts of computers today. And, also, Windows NT (2000,XP,Vista,7) was created by Jay Cutler, a DEC employee.
Popular Mechanics was actually right. Computers did slim down to a point where they weighed 1.5 tons. They kept getting smaller, but that doesn't mean they were wrong. They never said that would be smallest they would ever get.
The Von Neumann architecture is still alive and well in computing. He did get more credit than was deserved for it, as Mauchly and Eckert both had as much, or more, to do with the store-program computer, but, computers still use the Von Neumann architecture. But,again, this quote was taken out of context. The full quote is "It would appear that we have reached the limits of what it is possible to achieve with computer technology, although one should be careful with such statements, as they tend to sound pretty silly in 5 years"
So, be careful with quotes. They can tell you the wrong thing if the person using the quotes wants them to.
But again, no one on this forum is talking about the future, just how things work now. If you want to risk eternal da^^nation, then go for the Cymex. Don't say you weren't warned when you meet the horned one, laughing at you. He'll look like a giant Cymex machine (with horns), swirling away at the souls of the fallen. Oh, the humanity!