Comment by zzo38computer

> I'm interested in the idea of a clean slate hardware/software system.

I am also interested and I have many ideas about it. However, although my ideas are different from many existing systems in many ways (in many ways that most operating system projects aren't), there are many similarities too, so they are not quite "truly radical".

> I think being constrained to support existing hardware or software reduces opportunities for innovation on the other.

I think this is correct. (My ideas are not intended to be constrained to support existing hardware and software, although emulation of other systems is still possible (NES/Famicom, Game Boy Advance, uxn, etc).)

> It is defined by properties that it does not want to be.

Although it is not sufficient by itself, I think that it is still helpful to define what it is not supposed to be, as well as what it is supposed to be.