Question on impede information flow

[Sirius083]

Hi, Thanks for your great work In section 3 in paper "However, the identity function and the output of H_l are combined by summation, which may impede the information flow" I did not understand that, there is also similiar question on stackoverflow https://stackoverflow.com/questions/52696110/resnet-how-could-summation-impede-the-information-flow Looking forward to your reply

[WalkerMao]

I don't understand either