Joseph Knecht

    Protein Deficiency Today's constructors, Shannon Rapp and Will Eisenberg , remind us that proper diet after vigorous exercise is very important  And they point out that protein , one of the key nutrients, will need to be replenished afterwards.  And as AMINO ACIDS , a cruciverbalist's favorite, are the raw material that comprise proteins I've included a very brief video about the extraordinary process by which our cells converts them into this essential nutrient ... Shannon and Will Eisenberg now proceed to use these 4 themers to teach us a little protein metabolism ... 18A. Forward-looking aesthetic of Janelle Monáe and "Black Panther": AFROFUTURISM .  Afrofuturism is a cultural aesthetic, philosophy of science, and history that explores the intersection of the African diaspora culture with science and technology. It addresses themes and concerns of the African diaspora through techno-culture and speculative fiction, encompassing a range of media and art...

 Today's constructors are LAT veterans and sometime collaborators Dan Schwartz and Shannon Rapp, aka Norah Sharpe , who invite us to enter the crossworld of benign Diplopia ... Seeing Double ... but don't worry, you'll get over it.  Their theme was pretty obvious from the get go and made solving this one pretty easy.  Here are the two word themers, all identified by the trailing "?"  If you got enough perps in either word you could guess them both: 17A. Double bond?: PROMISES PROMISES .  This clue might refer to a covalent bond (sort of the chemical equivalent of community property) and the fill could be the name of a Broadway musical ,with the title song sung here by the Divine Dionne Warwick : 26A. Double check?: TESTING TESTING .  Performed by the sound gal (or guy ). 43A. Double fault?: EXCUSES EXCUSES . The refs words to John McEnroe's in clue 17A on March 16, 2023 . 58. Double jump?: SURPRISE SURPRISE . I suppose this means to get a jump on...