Remember: no technology means no fire, no spears, no arrow, no knives, no pottery, no weaving, no making glue, etc. If you believe those aren't technology, just try doing it yourself with nothing but your hands and nature.

You can even watch some youtube videos on making fire from scratch. Then try it yourself. You'll fail. Even the one guy on "Alone" who didn't take along flint&steel used advanced technology to make a bow drill (using modern cord and a knife). He was an experienced outdoorsman and still had a lot of trouble with it.

If you, I, or anyone else on HN were dropped naked into the wilderness, we'd be dead within a week. Likely within a day from exposure.