If all people vanished suddenly, how long would it take for the world to be uninhabitable for the one remaining person?
I mean food would remain good for some time. Energy would still be available in some form as energy production could still run for some time. There would be plenty of petrol to go about, but how to extract it.
For only one person and no new dangers, easily a lifetime. Think of all the non-parishable goods around. With no one else to consume them, there's far more than enough for a single person to live the rest of their entire life.
The same goes for fuel for a generator and/or car. It'll last one person's lifetime easily. Grab some solar panels and you're easily set for life.
The same goes for fuel for a generator and/or car. It'll last one person's lifetime easily.
Cars would, definitely. But would fuel? Petrol generally has a shelf life of around 6 months. If stored in an airtight container you can store it for a year. Then it starts to deteriorate. Like those 20 year old cars in "the last of us" definitely wouldn't have worked with the gas they just had sitting around in the tanks. 5 years well stored still functional gas, but according to my searches 10 years wouldn't.
But it honestly wouldn't be too hard to make fuel. I don't know about petrol but some engines can run on used frier oil and making very pure ethanol isn't much of a challenge.
Project zomboid is a pretty decent simulation of this actually. Power doesn't last long, but you can run a generator to power things. You have to hit self sufficiency in some capacity but it's totally possible to last indefinitely, as long as the zombies or malnutrition doesn't get the better of you.
You sound like you're not especially proficient at doing things yourself. A bit of offense meant. Not much.
I feel there's a novel in there
Effectively any post-apocalyptic world. I am Legend Will Smith is alone for one. Or the episode of Last of Us with Nick Offerman.
Or just any homesteader on YouTube.
I mean I'm sure a good writer would know how to, but writing a book with essentially a single character who doesn't speak or interact with anyone might be a bit of a challenge.
I'm proficient in cooking, just not in agriculture, hunting and butchering. I assume most people don't know about those things. If you want to judge me on that, go ahead.
I think there's a huge amount of things we take for granted that would get complicated once society collapses. There's a lot of petrol in gas stations, but how to extract that without the ATM working, it's hard to get at for someone who -like most, I assume- don't know about how petrol stations function.
I think the culmination of many of those things raises problems that not many of us think about in our regular lives.
A Andy Weir type novel, were the some survivor has to make do with all these unexpected tribulations seems interesting to me.
Maybe not to you, you nimrod and urban survivalist expert, but few regular people will encompass your aptitude for civilisation collapse survival.