is it true that the smallest thing in the world is a plank length?

Question: is it true that the smallest thing in the world is a plank length?
- Keywords:
  length,
  planck length,
  small
Asked by 10skyrimakj to Ross, Robert on 16 Nov 2015.
- Ross King answered on 16 Nov 2015:
  
  Yes! You’re absolutely right. A Planck Length is the smallest way we can measure anything meaningfully – it is about 0.000000000000000000000000000000000016 meters long. I can’t even imagine how small that might be!

Question: is it true that the smallest thing in the world is a plank length?