I got a question about volume of workload. We all know that you need to have a maximum volume of work in a certain time to get best results. So the question is – why does it work with heavy weights, but not repetitions? I mean, for example, that in one training we can bench 100 kg for 8 reps in 3 sets. That makes up a total of 800*3=2400 kgs. Then we can take 40 kgs, lifted for 25 reps in 3 sets, which would total 3000 kgs. But still we get to grow muscle with less weight in the end. How does that happen?