When using htaccess for password protecting, I mean. If someone's already logged in at https://somedomain.com, would they also be logged in at http://somedomain.com? LOL! Feels reeeally stupid asking this question!
No. Https is technically another server running on a different port (usually 443), so it would be a different 'authentication domain' than http (usually port80).
Thank you! And thanks for not laughing at my caffeine starved brain cells.