True, but I'd like to continue using products that produce close-to-real images. Phones nowadays already process images at lot. The moment they start replacing pixels it'll all be fake.
And… Some manufacturer apparently already did it on their ultra zoom phones when taking photos of the moon.
Meh. Cameras have been "replacing pixels" for as long as I've been alive. Consider that a 4K camera only has 2k*4k pixels whereas a 4K screen has 2k*4k*3 subpixels.
2/3 of the image is just dreamed up by the ISP (image signal processor) when it debayers the raw image.
I'm not aware of any consumer hardware that has open source ISP firmware or claims to optimize for accuracy over beauty.
And… Some manufacturer apparently already did it on their ultra zoom phones when taking photos of the moon.