What Are the Complications of Doing Oral History?

i wonder if we had shared stories, if our grandparents and great grandparents had shared their experiences of not just the violence, but wat itsel to live in undivided india. And i kept thinking that we don't have a contingency plan if something like this happens again. There is a reason why we are recording people's voices and the things that they remember,. because official archive doesn't give us the means to imagine what it was like.