[aredox]

From the article: "paleographers today identify the extinction of scriptio continua as a critical factor in augmenting the widespread absorption of knowledge in the pre-Modern Era. By saving the reader the taxing process of interpreting pauses and breaks, the inclusion of spaces enables the brain to comprehend written text more rapidly."

[nequo]

I_suppose_causality_would_be_difficult_to_establish_here_but_it_is_intriguing_nonetheless._A_little_space_between_words_helps_the_eye_quickly_see_word_boundaries_which_is_helpful_because_in_the_English_language_words_roughly_correspond_to_units_of_meaning.

[CRConrad]

In most languages, I'd think, not just English.