Life of Lichess studies

Hello everyone,
first of all my apologies for a so direct object.
Lichess site is wonderful but it has a tool that i like much more than other things:it is study tool.
Instead to open a post or blog on an online page,you can create chapters with study tool here on lichess. So my questions are:
are studies that i create infinite in time(i mean,if i no delete them,they resist in the time)?Lichess will remain always free?
Thanks for answers!

Well, Lichess says they will always be free, to answer your second question. About your first question? Well, I think if you don't delete a study, I think it will stay forever. lichess.org/study/APbOHN7E - this study(that I never finished) is 18 months old, and it's still here.

Thank you @Redscales,for me it is a dream that becomes true:)

Yes, I agree. Lichess' study tool is so nice!