Provided you knew what you were doing, indefinitely. Or until you died of old age or managed to contract a deadly disease/cancer/manage to injure yourself in a life threatening way that you can't treat yourself.

You might not be happy about it. But growing basic crops, storing away dried grains for the winter, hunting and dressing animals, making a fire to cook them, etc. should be well within the reach of anyone capable of reading this. Neanderthals could do it, so can you.

If you didn't know what you were doing, well, until you ran out of easily scavengable canned goods and/or died of botulism from eating one of them that wasn't as canned as you thought.

Honestly, the biggest issue would be mental, trying to figure out if there was any reason to continue.

19 years, 5 months, 21 days, 16 hours, and 23 minutes.

If the material world survived, living in a large city, I could probably scavenge for non-perishable foods for quite some time.

If it's a nuclear wasteland and I'm fending off mutants, I guess it depends on how many caps and nuka-cola I can find.

Indefinitely. Just punch a tree; punch a sheep; punch a rock. Y’all so lazy these days.

In complete isolation I think a lot of people (including me) would probably kill ourselves just after few months. We all need at least some social interaction to stay with healthy mind.

Aside from that, what the hell is even the point of living if you are the only person left?

I suppose it really depends on why I'm the last person on earth. If it was nuclear fallout, I'd probably be dead pretty quick.

If we're under the assumption that everybody just poofed away and I'm the last person, absolutely a few months minimum. I'm within easy walking distance of some stores that have plethora of canned and preserved foods and liquids. I also know some places that already have full solar infrastructure already integrated.

All that being said, I'd probably off myself. I'm fairly non-social to begin with but I'd still be unhappy never being able to communicate with anyone ever again on top of major resource struggles in the future. Never find a partner, probably not even a domesticated pet as they'd all likely die within a week or so if I don't prioritize that. Sounds incredibly sad and lonely

Round about a day or two. I'd likely make an oopsie while letting the zoo animals out and get myself slaughtered.

Probably depends on how everyone else disappeared

On the pro side, I live in southern California where I'm not going to have problems surviving the weather, even without electricity. I don't get bored easily, I like to read, and I'd probably entertain myself exploring. As others mentioned, food probably is not an issue, though I'd have to make sure I got the right combination of proteins and amino acids once meat wasn't available (or bring myself to hunt).

On the con side, I'm in my early 60s and, though I'm reasonably healthy, it's only going to be so long before I have some health condition that, if nothing else, makes it hard for me to go out and about for food.

Depends on what happened to the world, what resources I have, time of year, etc.

Assuming decent conditions and luck (nothing saving you from a severe infection gotten because wrong place wrong time), likely a fair few decades. I have a lot of survival knowledge, both theory and practical - and I refresh myself on a regular basis

Probably until my first paper cut and infection after all the antibiotic starts to expire, it’s likely game over some time soon after.

About a week until I couldn't even stand up anymore due to Long COVID.

After getting over the urge to kill my self…

Longer then one would expect

Most of us don’t have or are only kinda aware of real survival skills. - farming, hunting, fishing — okay there’s your food

Next thing is shelter and clothing- are the people just gone? Or is shit really messed up?

• you can get good clothes and if housing is still standing you’ll be fine for a long time.

Holding out hope that there are any other survivors would help you go on, I believe as you’d want to find them.

So yes there are no numbers, but if you’re in a good place mentally. You can survive a long time

Probably not for long. I'm on immune suppression medication, if it's a post apocalypse then I'll die from infection and if I somehow survive that then my ulcerative colitis will do it for me when it flares up.

Most of my problems are caused by other people being evil. I'd take being the last person on earth over that any day. I wouldn't live a super long time just because of lack of access to healthcare but I can't afford that today anyway.

I could survive the rest of my life.

Probably a long time. I can learn how to run essential systems and live on non-perishables. Or hunt and farm.

I'm more likely to die of sheer fucking boredom, because there won't be anyone to make new games or movies or books or music and no reason to post comments on Lemmy so I'd just want to off myself.

Probably until I get sick or die of old age.

I'll probably do things like ransack my local library for book like the SAS handbook, plant identification, etc to bring with me, hijack a truck that's already ready to go, load all useful stuff including a small backup car/motorbike and head for the sub-tropics somewhere to a forest next to a city.

If I were the last person on earth, I'd probably kill myself pretty quickly

By playing beatbox music and making everyone stay away from me while I grew corn and ate it slowly in front of them while they watched me cautiously from a distance.

About as long as content servers stayed up before I went crazy from boredom.

Something completely unforeseeable would off me within the first six months, is my guess. That tiny hangnail that breaks some skin which leads to an infection would be my demise. Assuming I didn’t have access to antiseptic, antibiotics, and the like.

Until I finished eating the second to last person.

I think I would try everything to launch myself into space. I know it's most likely impossible, but fuck it imma die anyway

Id probably get a fast car or bike and speed and end up crashing and dying or something