In a guest post for I Will Teach You To Be Rich, Cal New­port of Study Hacks dis­cusses fixed-schedule pro­duc­tiv­ity: a pro­duc­tiv­ity sys­tem whereby you set a sched­ule of work (and play) between cer­tain hours and stick to it ruth­lessly.

Tim Fer­riss afi­ciona­dos will note that this sys­tem relies on a premise that Fer­riss heav­ily depends on:

Much of the work we do is of ques­tion­able impor­tance and con­ducted at low effi­ciency. […] If we instead iden­tify only the most impor­tant tasks […] and tackle them under severe con­straints, we’d be sur­prised by how lit­tle time we actu­ally require.

The pré­cis of the fixed-schedule pro­duc­tiv­ity sys­tem, as used by author Jim Collins:

Fix your ideal sched­ule, then work back­wards to make every­thing fit […] around your needs. Be flex­i­ble. Be effi­cient. If you can’t make it fit: change your work. But in the end, don’t compromise.

Some of you may recog­nise this: Cal sug­gested some­thing very sim­i­lar last year, but on a  grander scale.

Fix the lifestyle you want. Then work back­wards from there.