SANTA CLARA — I spent a lot of time on the practice fields at 4949 Marie DeBartolo Way this year, but whatever injuries I sustained will be chalked up to old age. Or was it low-frequency electromagnetic waves weakening my body without even realizing it? I used sunscreen and wore a bucket hat during training camp, but didn’t line the hat in tinfoil. The 49ers’ season-ending press conference with general manager John Lynch and coach Kyle Shanahan Wednesday afforded an opportunity to address the whole power/plant substation theory of why the 49ers make such heavy use of the injured reserve list. Lynch diplomatically gave it his due as a member of the front office. That’s...
