TED Talks David Merrill: Siftables Toy blocks that think Posted on February 17, 2009 at 12:49 am. Written by Stephen Edgar Ananda posted in the forum a great video from TED:Talks and it is worth showcasing here. Ted: Talks David Merrill: Siftables, the toy blocks that think Share this: Leave a Reply Click here to cancel reply. Name (required) Email (will not be published) (required) Website Comment Notify me of follow-up comments by email. Notify me of new posts by email.