I remember the picture of the 98-pound weakling getting sand kicked in his face on the beach, and him working out, and then the bully gettint trounced. In other words, those Charles Atlas ads. I seem to attach him (in my memory) with Double Bubble bubblegum.
Only when astronauts insisted on one was a window installed.
Windows are weak points / points for failure. Extra design and materials have to be utilized to compensate.