scovich commented on PR #9234:
URL: https://github.com/apache/arrow-rs/pull/9234#issuecomment-3807438472

   > @scovich completely agree, and I think it makes sense that eventually this 
trait gets sealed. However, some crates are do willing to risk panics in order 
to benefit from the flexibility of `trait Array`, and this is a good 
intermediate step while these crates think or even contribute a better way of 
satisfying their needs.
   
   Understood. I was just commenting that the documentation in this PR, 
explaining why it's marked `unsafe` (strongly discouraged), doesn't give one of 
the biggest reasons. Maybe we should add that reason.
   
   Or maybe there's enough truly `unsafe` code to outweigh the "mere" panic 
risk of a cast gone bad?


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