Neil, Mike told me he put the tailgate up on his truck and was plugging in a trailer hitch when the tailgate fell and knocked him out. This happened late 2017 to early 2018 before Bolivia (July). He told me his head hurt and he had trouble remembering things. Most of the time in Bolivia he was just fine, but occasionally a little off kilter... Move on to Speedweek 2020 I think, saw Mike and asked how he was doing. He said fine, but I wasn't certain he knew who I was... later in the week he came up and told me he knew he knew me, but couldn't remember my name till after we talked.
I don't know if this accident led to his demise, but I know it distracted from his life and plan.
GodSpeed Mike... I'll bet with all the racers that preceded that you are organizing one hell of a race!!!