"<a href=""https://www.youtube.com/watch?v=gU-mkuMU428&amp;t=1h03m29s"">1:03:29</a> Here's the wisdom that comes from proving determinism: it isn't that everything becomes meaningless", but that every little thing you say, do, experience, feel is/was meaningful because it was always meant to be and always will. We're aware that time is relative; now isn't real because the past, present, and future all exist. This means all the love and memories (experiences) you care(d) about are still real, even if they're no longer real to the you in this moment. All our "choices" and actions matter because it's a permanent fixture of forever, at least in this version of whatever it is we're a part of. For anyone who has ever lost a loved one, that person, those moments that you cherish and feel are gone forever are still real and have always been.