No backup, support or resupply
Not too sure about this. To me that would mean carrying all your food with you from the start or gathering it naturally as you proceed (ie, not from shops). Or am I missing something on this point? The bike doesn’t look that loaded up.[/quote]
It means he was on his own (i.e. no-one following in a van) from the start and only had what was available to anyone, so shops and cafes. Its fairly common for longer offroad adventures as who has a mate that can also take a month off to follow you in a motorhome, but shorter rides and road rides there can often be some ‘support’ by way of vans carrying gear and meeting at regular intervals.
Also some people (although i think its mostly a US thing) post gear forwards to collect on route, so changes of clothes, specialist food or spare parts. For a timed event this can be a help, but for a non-timed tour (or on a route your not sharing 😉 ) i dont see the problem as its essentially the same as just buying from shops but you just bought it at home.