@ericgregorich I relate to what you're saying. My ability to focus when reading has eroded over the years largely due to the flood of short form content. I consume too many online articles, podcasts, and tutorials. Most of it falls under the "self development" category, but I'm beginning to think it's doing more damage than good. I can't remember most of it. Rarely does it change my behavior.
I'm making a serious effort to read more physical books, but like you mentioned, it seems I've lost the ability to focus. But I do think it's something that can be built back up over time.
For me, I want to setup better constraints around my online media consumption. In need to dial it down and read more books instead. Have 3 in the queue now. I'll let you know how things go.