Some food for thought:

They Have Been LYING To You About Roswell For 70 Years

Decades of trust me bro stories about Roswell, UFO, and aliens and not one person ever mentions the secret Northrop Strip or the back engineering of Horten (and other) cutting edge German craft.

https://m.youtube.com/watch?v=EtnLmflgGNM

The Truth about Roswell: Decoding Decades of Deception

https://m.youtube.com/watch?v=rih9-80p0Ec

Dark Journalist JFK UFO File Secret Physics With Joseph Farrell (There are two shows in this video. Watch both.)

https://m.youtube.com/watch?v=Z1ehAz1KWOI

The Roswell I-Beam is a controversial piece of debris from the 1947 incident that purportedly featured alien hieroglyphic writing on its surface. The symbols were famously reconstructed by Jesse Marcel Jr., the son of a military intelligence officer who handled the debris, though his father later stated the son’s drawings were inaccurate.

Skeptics and researchers argue the "writing" is likely decorative tape or mylar foil used on Project Mogul balloons, which were high-altitude surveillance platforms. The tape often contained simple geometric or floral patterns that could be misinterpreted as script due to the secrecy surrounding the project and the fragmented state of the debris. Additionally, the popular image of Greek letters on an I-beam originated from the 1995 hoax film Alien Autopsy: Fact or Fiction, created by Ray Santilli, rather than actual evidence from Roswell.

This kind of hieroglyphic writing was seen not only on debris from Roswell craft in 1947 but also in Kecksburg in 1965:

https://www.stangordon.info/wp/kecksburg/

Note the similarities to Die Glocke, the alleged Nazi Bell:

https://en.wikipedia.org/wiki/Die_Glocke_(conspiracy_theory)

Nitinol -- a nickel-titanium shape memory alloy developed in 1959. A precursor shape memory alloy was developed in the late 1930's.