>That is, light, since it interacts within a material universe, nust therefore be a part of that universe and one could derive from that that light then has some sort of material qualities.
Because light interacts with the material universe, the most you could derive is that both may have some properties in common, not that light has material properties.
Isn't it just the case that light & matter are both just forms of energy in a particular configuration ? Both light & the 'material universe' are simply our perceptions of those configurations.
Mike
"I can live with doubt and uncertainty and not knowing. I think it is much more interesting to live not knowing than to have answers that might be wrong." - Richard Feynman