You have met him in the winter of 1984. Twenty years later, sitting by the Spieker Pool, you are again pondering on those RBQs. (really big questions.)

– How come existence?
– Why the quantum?
– A participatory universe?
– What makes meaning?
– It from Bit?

about the last RBQ, Wheeler said:
” Every it – every particle, every field of force, even the space-time continuum itself – derives its function, its meaning, its very existence entirely – even if in some contexts indirectly – from the apparatus-elicited answers to yes-or-no questions, binary choices, bits.”

You can certainly keep on asking more RBQs. Hans Christian von Baeyer asked two:

– What is information?
– It from Qubit? (quantum information)