Crossword puzzle clue "easy time as it were"

Easy time, as it were

Particle physicist whose findings were first accepted by Einstein, but later were shown to be fraudulent

"Wish you were here—__ were there"

Name that would be super easy to clue if this puzzle were in Korean

"Easy ___, easy go"

"Easy, there! Easy!"

"Easy peasy, nice and easy!"

It's easy to do....well, it's just easy to do