>From the New York Times: SCIENCE New Technique Reveals Centuries of Secrets in Locked Letters <https://www.nytimes.com/2021/03/02/science/locked-letters-unfolding.html?searchResultPosition=1>
M.I.T. researchers have devised a virtual-reality technique that lets them read old letters that were mailed not in envelopes but in the writing paper itself after being folded into elaborate enclosures. <https://www.nytimes.com/2021/03/02/science/locked-letters-unfolding.html?searchResultPosition=1> https://www.nytimes.com/2021/03/02/science/locked-letters-unfolding.html Yaacov Metzger
