I can't decipher this paper that defines a 'time crystal': https://www.nature.com/articles/s41467-022-30783-w https://www.nature.com/articles/s41467-022-30783-w

I can't decipher this paper that defines a 'time crystal': https://www.nature.com/articles/s41467-022-30783-w https://www.nature.com/articles/s41467-022-30783-w Any help translating the physics in this research into plain english is appreciated.