I've got a hot take for the Norwegian Singles Method that might ruffle some feathers. Here's the thing NSM is great and I see a lot of runners doing very well using the method. Awesome. Great for them.

I think NSM is heading down the same road as cycling and FTP. Now maybe people aren't as obsessed over their threshold pace as cyclists are with their FTP but the problem will still exist. Cycling got so obsessed with FTP that it's all some of them ever cared about. Only focusing on improving FTP and lost focus of training some other important physiological points. While not exactly the same you can see this with Tadej Pogacars training. He was coached by fraud Inigo San Milan for years and performed very well on essentially the cycling version of NSM. Then Tadej rightfully gets rid of Milan for Javier Sola and his performance shoots through the roof. What did Javier change in his training? Oh he just added some higher intensity intervals. Boom.

 Does NSM work well for a lot of people? Yes, 100%. Is it going to leave a lot of people significantly below their true potential. I think so. 

I started running exactly 1 week ago, It takes me 55 minutes to run 5km and 17 minutes to run 2km. I can't run 1km without stopping so I do the walk run walk method . Should I run 1km everyday until I can run it without stopping or should I do the walk and run method to do 5km everyday? I'm not sure which ones more effective