Before the Big Bang

https://news.harvard.edu/gazette/story/2019/04/harvard-study-proposes-new-way-to-probe-universe-before-the-big-bang/?utm_medium=social&utm_campaign=hu-facebook-general&utm_source=facebook&fbclid=IwAR0B16rmOEjrVyUdMMVecmVKSnjKn4oiM2XdbF0qIu35zbXQrmNcy-EcURk