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+## On the Meta
+
+- actually-realized data rates are often smaller in practice than according to underlying specs, 
+  - see even i.e. transfer of some tens-of-megabytes onto an SD card (copying a gcode file) - we observe only ~ 20mb/sec of advertized 80mb/sec or so 
+- otherwise, you have notes on what-the-point is in your `scratch` 
+- and consider linking to the ring-test page 
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