Show and Tell Infobox|Featured image=[[File: Brain-optimization.jpg|frameless|250px]] | Date= 2014/06/20 |Event name= London Meetup |Slides= | Show and Tell Infobox|Featured image=[[File: Brain-optimization.jpg|frameless|250px]] | Date= 2014/06/20 |Event name= London Meetup |Slides= |