I'd be very surprised if most common usage of RTX would turn out to be anything even remotely physically accurate. A more likely use in the immediate future is

I'd be very surprised if most common usage of RTX would turn out to be anything even remotely physically accurate. A more likely use in the immediate future is to simplify some parts of the rendering pipeline, and improve quality on a few others. Without looking too much into to it, improving and simplifying soft shadows and are lighting seems like a no-brainer. Both are really hard to implement efficiently using rasterization, and/but both needs a good denoiser. Will be interesting to see thought. I believe it's a bit later than I predicted that we get to see real time ray tracing on commodity hardware, but what is a couple of years over a few decades?