alt Hacker NewsI agree with the article. Discussing previously created code and do code reviews live covers a lot of ground. Whereas live coding is just meaningless for the stated reasons.
But a 9-hours interview process seems just too much... I think you will only ever know a candidates true fit once you start actually working together and 2-3 short sessions with someone is enough to get that go/no go feeling.
You can't hire without taking risks.
Where I live, you usually have a 3-months probation time in which both sides can quit within a 7 days period... so the risk is manageable.
Just feel a candidates fit and then go for it... and adjust when necessary. Don't overthink it.
As long as someone isn't relocating, it's possibly reasonable. As long as someone is moving, there's a lot bigger barrier to taking a job. Mind you, there's is a barrier in any case if someone has a decent-paying job but just isn't loving it.