So in BTTF3 Marty has returned to 1955. He has explained to Doc off all the events that are to happen with the Delorean being struck by lightning and being sent back to 1885, right?
Well since Marty is talking to the 1955 Doc that has to go throught the next 30 years with that knowledge Doc could either:
1) Put an extra microchip in a secure location inside the Delorean from the get go
2) Not fly in the storm, therfore not getting struck by lightning
3) Not invent the Time Machine to begin with
Well since Marty is talking to the 1955 Doc that has to go throught the next 30 years with that knowledge Doc could either:
1) Put an extra microchip in a secure location inside the Delorean from the get go
2) Not fly in the storm, therfore not getting struck by lightning
3) Not invent the Time Machine to begin with