diff --git a/docs/images/physical.graffle b/docs/images/physical.graffle
index 96c95c5..2dd0249 100644
--- a/docs/images/physical.graffle
+++ b/docs/images/physical.graffle
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diff --git a/docs/images/physical.png b/docs/images/physical.png
index 229b151..75d935d 100644
--- a/docs/images/physical.png
+++ b/docs/images/physical.png
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