grey_line By Eiko Fried 2017-01-23, 12:12 pm 2017-01-23 Full size 600 × 425 pixels How theoretically distinct mechanisms can generate identical observations Previous image Next image Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *CommentName* Email* Website Notify me of new posts by email. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.