To go on top of that. My brother died when I was 15. he was 23. He was a huge computer geek and knew a lot about programming and such. I took over his IBM PC Jr (back in the day). I had a hard time figuring out something with the old Dos 6.2 (no shit, you newbs wouldn't have a clue what that means). I swear I tried to figure it out for days and all of the sudden it hit me. This was about a year or so after he died. I typed in the simple "mode 80" command and it worked.
I could have sworn that he was right over my shoulder and told me what to type in. That was just weird and I'll never forget it.