We don't know what we're talking about

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         : I have spent considerable time on and off again in the seeking of the answers of the effects of porosity.

: One major conclusion is that we don't know what porosity actually is or looks like, so we can't do well at estimating how it acts or modifies ordinary behavior.

: The second major conclusion is that we really mostly don't know what microstructure is, but some of us talk of it incessently.

: Microstructure - including porisity - is like looking at clouds and trying to deduce sweeping conclusions about weather.
: We can look up and see "Strata" "Columbi" and a variety of other humanly recognizable features.
: We can look up and see horsies and doggies and bunnies and faces too.
: We can look in a microscope and see "equiaxed", "columnar" and other humanly recognizable patterns.
: We can look in a microscope and see horsies and doggies and bunnies and faces too.

: We fool ourselves.  We really don't "know" the basics of what materials are.
: We fool ourselves.  If we don't know the basics of what our materials are, then how in hell are we going to understand what happens as they kinetically react with each other and with the surroundings?
: We can't do a very good job under those conditions.

: We have all failed to be scientific enough.  What you can't measure, you may not understand.
: We still don't know how to measure significant things about microstructure.
: We can measure the hell out of microstructure, but we don't KNOW what is significan to measure.

: We have a long, long way to go in materials and corrosion of materials.  Most of us don't even know what the path looks like.  It isn't like what we were taught.

: Comments?