It was pretty clearly a hypothetical. As in, he doesn’t see enough evidence to justify high confidence that libertarianism would not be terrible, which is perfectly in line with his statement that he doesn’t know which system is best.
It’s hypothetical about libertarianism. Other approaches have been tried, so the single data point does not generalise into anything like “no one ever has any evidential basis for choosing a political system or party”. To look at it from the other extreme, someone voting in a typical democracy is typically choosing between N parties (for a small N) each of which has been in power within living memory.
It was pretty clearly a hypothetical. As in, he doesn’t see enough evidence to justify high confidence that libertarianism would not be terrible, which is perfectly in line with his statement that he doesn’t know which system is best.
It’s hypothetical about libertarianism. Other approaches have been tried, so the single data point does not generalise into anything like “no one ever has any evidential basis for choosing a political system or party”. To look at it from the other extreme, someone voting in a typical democracy is typically choosing between N parties (for a small N) each of which has been in power within living memory.