Oh man, George, you're running into the artist's conundrum. It looks like it opened another door that we all, as creators, face sooner or later.
Two different points here:
1) When on the computer we are painting with pixels. And when painting with little cubes of light, you can do that. So we can put that one aside for the moment.
2) I agree in principle with you even though not necessarily in your point of contention with digital vs traditional materials. I think the issue is far bigger than ArtRage. It's about being a creator. Never underestimate the incredible value of setting limitations. When dealing with the infinite, for the creative person, reduction seems to be the only way we can grab and manipulate anything at all, and see it and show it.
The creative challenge, and sometimes the hardest part of that process, is being willing to narrow things down. Knowing where to cut and how much to not use in creating something is the flip side to bringing something into form.
It's true of writers, of artists, of musicians, it's true in allocating resources, budgeting, eating, choosing who to like, who to love, how many to love, how much medicine to take, and which kind. The flip side is also knowing when either extreme of freedom or restriction is working against us.
We pick a section to manipulate, and we learn proportion. After a point, we don't have to puke before we know it's too much alcohol we're drinking. . . if any. Sometimes it's called wisdom, sometimes prudence, sometimes mastery, and it's essential to any artist to know what works for them. Inhale and exhale. Expand -- contract. And this process is what defines the difference between artists.
Just be selective with digital mediums, and don't leave every choice to the computer. If you don't like mixing oil with water, then police yourself.
To accept this fact or narrowing what I'm aiming for, it took me, personally, far too long to learn. My imagination is vast, and that infinite expanse of potential doesn't allow for those thoughts even to be fit into sentences, or to fit onto a canvas. I end up dissatisfied and frustrated because I compare what I've done and feel like I totally missed the target, because what I end up doing from that mindset is never ever even close. I think it's also the bane of our existence for those who never learn to accept that limits already exist in our world when not working within mostly set parameters.
I think the reality of that condition is why spirituality get's shoved into religions, and why religions become so narrow, exclusive and dogmatic -- the high stuff gets pulled down by the demands of the narrow, by sometimes well-meaning ones who have agendas that are very specific because that's where their reality lies. Yet, there exists a perpetual effort among visionary humans to try to grasp those shiny keys that are just out of reach above our cribs, in every endeavor of life. It's also why artists are often called having their heads in the clouds.
Since there is no right and wrong answer in Art, it makes it really hard on the artist as visionary. It's great for an apprentice or someone working in a pre-existing studio where it's very clear what they are doing. But we're talking about two different worlds.
It also seems why computers have removed such constraints where they can, and it's why people embrace that freedom.
When you figure it out, lemme know.