I read on https://www.traveller.com.au/melburnian-rachel-davey-is-the-first-australian-woman-to-visit-every-nation-in-the-world-h28dpl  (mirror):

In human history, more people have been to space than visited every nation.

Is that true?

I read in Melburnian Rachel Davey becomes the first Australian woman to visit every nation in the world  (mirror):

In human history, more people have been to space than visited every nation.

Is that true?

I read on https://www.traveller.com.au/melburnian-rachel-davey-is-the-first-australian-woman-to-visit-every-nation-in-the-world-h28dpl:

In human history, more people have been to space than visited every nation.

Is that true?

I read on https://www.traveller.com.au/melburnian-rachel-davey-is-the-first-australian-woman-to-visit-every-nation-in-the-world-h28dpl (mirror):

In human history, more people have been to space than visited every nation.

Is that true?