I didn't know that the criteria for being 'stuck in the past' is the ability to be installed on 68k hardware.
That was not what I wrote, and I expect that you know that.
But let me comment on it anyway, the classic 68k is stuck in the past, my critery for saying that, is that it was developed last century, the 68k cpu has not been developed in, what close to 20 years, the same for the rest of the classic amiga. I know there are FPGA implementations and what not, of the classic, but they still have to conform to the very dated chipset, so does software running on 68k.
Compared to other actively developed commercial operating systems, AmigaOS 4.x is soooo stuck in the past.
That is your oppinium, I would not list that as a criteria, besides albeit slow progress, it is still developed.
but why don't you give me examples why AOS 4.x is stuck in the past, besides backwards compatability, which all OS's has, as you pointed out.