My theory is this: - too weird - Plan 9 is very difficult to get used to as a user experience. Novel, fascinating, powerful, yes! But also minimal, impenetra

My theory is this: - too weird - Plan 9 is very difficult to get used to as a user experience. Novel, fascinating, powerful, yes! But also minimal, impenetrable, and very very different from the UI you're used to as a Unix hacker. - nonexistent marketing - too hard to get into initially; I wish they had gone to a public source repository model earlier, although in all fairness the project predates a lot of this. But, it was still an enormous success: - UTF8 came from Plan 9 - Linux's clone syscall - /proc - numerous other minor things The main thing I wish I saw more that was in Plan 9 was structured regular expressions. I'd love an awk based around them, or an ssam that didn't basically run sam on the file. The second thing I wish I saw more was Plan 9's per-process filesystem namespaces. Chroot and jail are crude hacks compared.