You have to be at a certain level to have an understanding of the dense concepts in physics and astronomy, the problem-solving skills required in engineering, or the ability of analytical thinking for any science topic. Every field has its own hardships. That being said, intellectually; the critical thinking required In studying physics, engineering, and general sciences is superior to any other field based on the difficulty of what is studied. What's the consequence of all this? It's represented in this t-shirt where it is a waste of time to argue with someone with this level of critical thinking! • 100% ring-spun cotton• Sport Grey is 90% ring-spun cotton, 10% polyester• Dark Heather is 65% polyester, 35% cotton• 4.5 oz/yd² (153 g/m²)• Pre-shrunk• Shoulder-to-shoulder taping• Quarter-turned to avoid crease down the center• Blank product sourced from Bangladesh, Honduras, Haiti, Mexico, or Nicaragua Size guide S M L XL 2XL 3XL Length (Worldwide) (inches) 28 29 ¼ 30 ¼ 31 ¼ 32 ½ 33 ½ Width (Worldwide) (inches) 18 20 22 24 26 28 Length (East Asia) (inches) 26 ⅜ 27 ½ 28 ¾ 29 ½ 30 ¼ Width (East Asia) (inches) 18 ½ 19 ¾ 20 ⅞ 22 23 ¼ S M L XL 2XL 3XL Length (Worldwide) (cm) 71 74 77 79 83 85 Width (Worldwide) (cm) 46 51 56 61 66 71 Length (East Asia) (cm) 67 70 73 75 77 0 Width (East Asia) (cm) 47 50 53 56 59 0