This question is entirely dependant on where you ride...


I can think of huge differences,

I have ridden in places when carrying 1 days worth of food and water doesn't in the least effect your safety/survival...

There was a town every 20 Km...

Then there were places where if you didn't have 10 days worth of water and food... Well, you were rolling the dice... Research where you are going and plan for specific "differences".