Debuts rich in neurodiversity and self-analysis jostle for attention at this year's festival with a beloved grandma, the Russian elite and a misguided attempt at an apology We've reached the halfway point at the Edinburgh fringe, where more than a third of the 3,600 shows are comedy. Rain is pouring and I'm clambering up one of the city's many hills to get to the next show: my 50th of the festival. This is my second …