That's very interesting! I see numbers as... The actual numbers along a line which is a bit more like stairs. The number 8 is higher up than the number 5. My own Rainman visualisation is that when I write a text I can _feel_ what others will feel when they read what I've written. Whether it's funny, sad or boring (or clever!) I can just read the passage and at the same time feel what my readers will feel.