https://www.youtube.com/watch?v=MAScJvxCy2Y
Lee Smolin - How Can Space and Time be the Same Thing? https://www.youtube.com/watch?v=QOAcQCFNtbo
Neil deGrasse Tyson Explains Time Dilation https://www.youtube.com/watch?v=1BCkSYQ0NRQ
General Relativity Explained simply & visually https://www.youtube.com/watch?v=tzQC3uYL67U
https://therabbitportal.blogspot.com/search?q=Neil-deGrasse-Tyson