Self-healing metals?

Saw this randomly pop up today and was not sure if anyone had posted about this before?

Considering how fast UAP travel with no damage to its hull, this could be part of their tech? Who knows, this breakthrough might stem from reverse-engineering?

Sorry if this has been posted several times earlier..

https://preview.redd.it/p9236gmmniqc1.png?width=894&format=png&auto=webp&s=5203f411da05056e8b724ee4c8e2eca5ddc6234f

submitted by /u/wholelottalove84
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