please consider this perspective. i'm certain that thomas will concur.
objects give us the illusion of sameness from moment to moment, however, in fact, they are in a perpetual state of change. nothing is actually static- everything is always on its way to becoming something else. A seed becomes a seedling, to a tree, to decompose back to the soil. So is it a seed or is it soil? It’s neither and it’s both.
point: It is in a particular state at the particular time that it is being observed.
another way to think about this idea of 'relativity in perspective', is: pretend you're an ant. it's easy to walk under a house door. go smaller, and you could float through the atomic structure of the door itself. now pretend you're a giant. try to get in the same house. what if you were a being as big as a galaxy? what would be microscopic to you then, at that scale?
think about how the life-span of a human also comes into play here. if you lived for 800 years, you might be able to see dirt become compressed into a stone and then fall apart back into dirt again, etc... what's the 'real' nature of the material then?
from reading your posts i know that you have a fine scientific mind, but in all respect, you could use some 'intuitive' thinking exercises. intuitive knowing is where this kind of stuff resides. its not all about raw thinking. the ancients didn't just power-think their way through things with sheer academic muscle. shamanism (intuition, dreams, altered consciousness) proves this, with their abilities to know about atomism and other 'unseeable with eyes' modern-science 'facts'...
hope this helps your understanding of thomas' point.