geoffrey cohen, someone whose work i really admire and, whose book is just fabulous. so it's just that you can buy one and get one free. so welcome to you, jack. thank you so much, beverly i am thrilled and delighted be here with the audience and in this venue and, especially with you. i have a long your work and and we go way back way. so i'm delighted to be here and conversation with you and am very excited to. first of all, as i said, it's a fabulous and i have lots of questions, but every book has a back and i would love to ask you, what is the backstory, your book, why this book right now? what brought you to it? well, my colleagues and i have been doing research for a long time. i would say two or three decades that is grounded in social psychology. and we've been away at this work, which now turns out to have so much relevance to where we are now, what people book judge calls a crisis of belonging our society and perhaps across the world where we are fragmented like almost before. and i think our work has a lot to say about how to bridge divides and make things