I worked at a company where a coworker insisted that we created a huge printout of all the database relationships. He spent a long time at it, and it took tons

I worked at a company where a coworker insisted that we created a huge printout of all the database relationships. He spent a long time at it, and it took tons of paper. I glanced over it, realized it didn't do anything for me, and then promptly ignored it. I've spent my entire programming career ignoring those kinds of charts and diagrams. I "see" the connections in my head without any visual representation at all. I simply know where things are, what they connect to, and how things work. I'm not blind. I just don't get anything from those tools. It doesn't surprise me that this blind coder doesn't need them.