gm have been made, and
even cases where the change was reversed as much as a decade or more later. 

	.	Furthermore, as time passes, technological advances make
other approaches appropriate, or even possible when previously they weren't.
We live in a world of change. 

	.	Is it really so important if we settle on a particular path
for the time being? Especially as we have one that is so flexible. I suggest
that no-one demands that the first iteration of a new standard be perfect.
There will be no skin off a