That's...true, but potentially misleading. What's missing is that a major reason hardware is more reliable is that hardware design can and does punt the parts w

That's...true, but potentially misleading. What's missing is that a major reason hardware is more reliable is that hardware design can and does punt the parts which are difficult to test into software. Which is a perfectly sensible strategy, but does mean that software wouldn't get as reliable as hardware if software people adopted the same methodology.