When I was researching the book Toxic Electricity, I would see biological reactions for up to a week afterwards. They are typically strong in the first day or two after the electromagnetic field (EMF) exposures and tail off as the week goes on. I would feel fine during the EMF exposures and start seeing weird health effects usually during sleep that night. Extended time around high voltage power lines & power poles were the worst for provoking reactions, followed by wifi and transmitting utility meters.
I didn’t believe that God told some guy, however many thousands of years ago, “Hey, build a ginormous boat in this desert over here.” I liked it as a story, though, because it seemed like the kind of thing God ought to say. There were crazy stupid things that needed to get done, or should have gotten done, or turned out to be wonderful when they did get done. And maybe, if God ever did tell people what to do, it was to stick up for these crazy stupid things that no one in their right mind would ever do otherwise.