В России ответили на имитирующие высадку на Украине учения НАТО18:04
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Some ergonomic keyboards come with permanent or removable wrist or palm rests, which can be cushioned or hard. This is another area where opinions diverge: proponents claim they help you maintain a neutral hand position, while detractors say they put pressure on the tendons and can cause wrist pain or even exacerbate conditions like carpal tunnel. Ideally, your palms should be resting, not your wrists, and you might find you like having that support or you may find the pressure uncomfortable.。关于这个话题，51吃瓜提供了深入分析
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公式： f(x)=tanh(x)=ex−e−xex+e−x