I'm a scientist, though not a leading researcher by any means. But when I'm tempted to think that science is hard, I think about the science in the past and wha

I'm a scientist, though not a leading researcher by any means. But when I'm tempted to think that science is hard, I think about the science in the past and what primitive tools they had: No computers before 1950. No electronics before 1900 (all dates give or take). No calculus, etc. Al Khwarizmi had no equations! And when algebra and calculus came out, you practically had to be a philosopher just to grasp them. Now they're taught to schoolchildren.