This is because the developer community, aside from some long-time system hackers like Linus who <i>know</i> what&#x27;s at stake (most of whom are Linus&#x27;s age or older), do not think in terms of building software that will last and adapt to changes. They think in terms of &quot;old and busted&quot; and &quot;new hotness&quot; and that their job is to migrate everyone off the old and busted and force the community to adopt new hotness. Hence the churn in GNOME, hence systemd.