If He Forget everything on purpose ? 
( Like The genius for remember everything 10 years later everything he did making something he is alone able to see them ).
He know governements probably want to kill him or want him to work for them so he take the risk to be forgotten forever as a legend.
Imagine what he was able to do in 2008 already, when no one in world have the power to change the world, he was the one to believe he was able to start the revolution alone and change entire world by himself.
Nothing, he predicted everything perfectly, he will comeback one day i think he is already back but to crazy like 10 years ago no one believe him already.
In my own opinion, the government will not do anything to harmful to Satoshi because creating bitcoin cannot be consider as a illegal activity, it is only been used to illegal activities, but it is not reasonable to consider it as a illegal, that is why the only thing that the government will do to Satoshi is maybe ask him some serious questions about bitcoin and blockchain technology. ( Like The genius for remember everything 10 years later everything he did making something he is alone able to see them ). He know governements probably want to kill him or want him to work for them so he take the risk to be forgotten forever as a legend.
Imagine what he was able to do in 2008 already, when no one in world have the power to change the world, he was the one to believe he was able to start the revolution alone and change entire world by himself.
Nothing, he predicted everything perfectly, he will comeback one day i think he is already back but to crazy like 10 years ago no one believe him already.