It was also pointed out that Compliance is an extremely important factor
to take into consideration, and that Custom Extensions (as being optional)
-effectively fall entirely outside of the Compliance Testing. At this
-point in the discussion however it was not yet noted the stark problem
-that the *mandatory* RISC-V Specification also faces, by virtue of there
-being no transitional way to bring in show-stopping critical alterations.
+effectively and quite reasonably fall entirely outside of the scope of
+Compliance Testing. At this point in the discussion however it was not
+yet noted the stark problem that the *mandatory* RISC-V Specification
+also faces, by virtue of there being no transitional way to bring in
+show-stopping critical alterations.
To put this into perspective, just taking into account hardware costs
alone: with production mask charges for 28nm being around USD $1.5m,