An important aspect of understanding your business ecosystem is knowing your position within it (positioning), whether you hold a higher or lower (subordinate) role, and whether your offerings are substitutes or complements. Netflix started as a DVD rental service. With the rise of online streaming, Netflix saw it as a replacement for DVD rentals. Kimbap and Ramen are complementary goods, but Ramen and Udon are substitutes. This is why, even when setting up a snack bar, paying attention to the menu is crucial. Complementary goods increase sales, while substitutes are more likely to lead to no change or even a decline in sales. - Joseph’s “just my thoughts”
A lifetime of tuna is about 10 years. They don't have any muscles to suck the water up and constantly have to be moving their bodies to breathe in the water. So, they can not be sleeping or resting a lifetime of tuna. Even going to sleep, tuna must keep on moving in a sleep-like state until their deaths, if they stop moving, they will be dead soon. According to the attribution, tuna can swim in water at over 100 km/h speed, they need so many other fishes as foods to supply the wasted energy for this fact. The tuna is paid for the huge price of becoming a top-rated predator. But I'm not a top predator, so why do I eat so much? - Joseph’s “just my thoughts”