by bcaulfield on 11/11/23, 5:18 AM with 46 comments
by dang on 11/12/23, 10:17 PM
The pyramid of Gunung Padang began construction in the deep past, study claims - https://news.ycombinator.com/item?id=38181200 - Nov 2023 (40 comments)
Gunung Padang - https://news.ycombinator.com/item?id=37760981 - Oct 2023 (24 comments)
by civilitty on 11/12/23, 2:57 PM
The authors used the SHCal20 radiocarbon dating calibration curve but tested volcanic soil samples. C14 depleted CO2 and carbonate minerals dissolved in groundwater coming from Mount Gede a few miles away will make the samples look significantly older than they actually are.
SHCal20 is meant to be used with drilled samples from bulk material like bone and fossilized plants, not soil samples that are exposed to the elements for thousands of years. C14 concentrations in the atmosphere vary significantly, over time, especially around volcanically active regions so they need to make their own calibration curve for that specific area to get any kind of accuracy.
by AStrangeMorrow on 11/12/23, 5:49 PM
by stareatgoats on 11/12/23, 3:18 PM
He is most certainly wrong about most of it. But the notion that prehistory still holds a lot of amazing things waiting to be discovered, much of it buried deep in the oceans after the sea rise that occurred after the glaciers of the last ice age melted away just 10.000 years ago or so is most probably true.
by ush on 11/12/23, 3:28 PM
by narrator on 11/12/23, 3:50 PM