Learn Italian: Quando si viaggia, si è sempre connessi. - When one travels, one is always connected.

This is a special rule for the impersonal si. Whenever you use the impersonal si with the verb essere (to be) followed by an adjective, that adjective must be in the plural form. Even though the verb è is singular, we say si è connessi, not si è connesso.

Could I say si è sempre connesse if I'm specifically referring to women?

Yes! The default plural for mixed or general groups is the masculine -i ending (connessi). However, if the general statement applies exclusively to a group of women, you use the feminine plural ending -e (connesse).

Why don't we make the verb plural too, like si sono connessi?

The impersonal pronoun si always takes a third-person singular verb, whether it's an action verb like viaggia or a linking verb like è. It is only the adjective that becomes plural when used with essere. The phrase si sono connessi actually means "they connected themselves" (a reflexive past tense), which changes the meaning completely!

Does si viaggia always translate to "one travels"? It sounds very formal in English.