But that boon comes at a price. As the media theorist Marshall McLuhan pointed out in the 1960s, media are not just passive channels of information.

" 但是这个实惠是要付出代价的。就像媒体理论家马歇尔-麦克卢恩在上世纪60年代所指出的那样，媒体可不只是被动的信息渠道。