Japan's Fugaku supercomputer developed by the Riken research group and Fujitsu has been ranked the world's most powerful supercomputer for the seventh time in a row since 2020. Meanwhile, a group including several Japanese universities has said it will use Fugaku to develop tools using generative artificial intelligence. In other news, Japan is considering a revamp of its tax-free shopping system following the growing trend of reselling tax-free goods overseas. And finally, the lone yokozuna-level sumo wrestler ‘Terunofuji’ and the former ozeki-level ‘Asanoyama’ both lead the field yesterday at this year’s Summer Grand Sumo Tournament taking place at the Ryōgoku Kokugikan Sumo Arena from May 14th until the 28th. And with the current Netflix drama “Sanctuary” proving a hit, we head to Ryogoku. Tickets have completely sold out so we wait outside as a trickle of sumo wrestlers march in and then saunter out, one by one. — Substack: notebookpodcast.substack.com Instagram: @notebook_pod Twitter: @notebook_pod — Get in touch: notebook.podcast@gmail.com Leave a message: speakpipe.com/notebook —