We all know today the devices have different ppi. Traditionally a pixel is a point, which is 1/72 an inch. But today, iPhones have 326 pixel per inch why the point should remain the same for typography practice (12 pt is readable on a desktop monitor but would be too small for iPhone, instead we need 54 to 55 pt on the art board).
This is bad because if I design for multiple devices, I have to change the typography across the art-boards to match similar visual outcomes. Photoshop has provided solution to this issue a long time ago. I wonder if there is some hack we can do to accomplish the same solution in Illustrator.