Gen blinked. “I wonder how much modern tech would’ve cooperated if cell phones were so tricky - I suppose it’d depend what part of the phone was so disagreeable to you.”

Thoug he giggled. “Not that I know much to help you. That’s very much Senku-chan’s department. At least I can relate - we’ve only recently gotten more of our modern technology working again. When we travelled through the world, talking to each other over radio was the best we could do if we were apart.”