PhD student finds lost city in Mexico jungle

LiDAR, Mapping, and Methodology

• Several comments note LiDAR is increasingly used to find hidden sites, especially under jungle canopy, and that “lost city via LiDAR” headlines are becoming routine.
• One user asks for a global map of LiDAR coverage similar to Google Street View coverage; others discuss how mapping “coverage” is nontrivial and mention techniques like viewshed analysis.
• Some emphasize that finding structures in LiDAR is only the first step; meaningful archaeology still requires fieldwork and excavation.

“Discovery” vs. Local Knowledge

• Multiple comments criticize sensational claims of “discovering lost cities” that local communities already know about.
• Others argue that “discovery” can legitimately mean making insider knowledge available to the wider world or to scholarship.
• There is concern that dismissing local knowledge or not engaging with communities is both disrespectful and methodologically weak.
• Discussion notes that locals may know ruins but not see reasons to report them; also that local accounts can sometimes be unreliable or embellished.

Funding, AI, and Disciplinary Incentives

• Archaeology is portrayed as severely underfunded compared to trendy areas like AI, with specific grant figures cited.
• Commenters joke that adding AI processing to LiDAR will attract more money, reflecting frustration with current funding priorities.

Search, Serendipity, and Humor

• The detail that the PhD student found the dataset on page ~16 of Google becomes a running joke about unexplored “deep search pages” as a new frontier.
• Some debate whether this counts as an “accident,” since the researcher was deliberately hunting for LiDAR datasets.

Prevalence of “Lost Cities”

• Commenters note that parts of southern Mexico and Central America are dense with undocumented or little-studied Maya sites; “throw a stone and you’ll hit a lost city.”
• This abundance leads some to downplay the romanticism of such finds; others still express wonder and enthusiasm for visiting ruins.

Risks, Access, and Looting

• People highlight that jungle terrain is harsh and that proximity “15 minutes from a road” doesn’t make access trivial.
• There is concern that the same LiDAR and drone technologies can aid looters and grave robbers, not just scientists.