Esoteric or inner knowledge is no different from other kinds of human knowledge and ability. It is a mystery for the average person only to the extent that writing is a mystery for those who have not yet learned to write.
Beyond 2050 the world population may start to decrease if women across the world will have, on average, less than 2 children. But that decrease will be slow.
Going meat-free can make a huge difference. Studies show that vegetarians are, on average, 10 to 20 pounds lighter than meat-eaters and that a vegetarian diet reduces our risk of heart disease by 40 percent and adds seven or more years to our lifespan.
The susceptibility of the average modern to pictorial suggestion enables advertising to exploit his lessened power of judgment.