From the first four episodes....
1. A sizable body of water can freeze solid before a swimmer inches from the surface gets out, while characters above in an arctic environment headed toward -60 that night are conversing without their helmets on in temperatures warm enough that their breath isn't fogging.
2. A forest will grow thirty feet from the face of a glacier. This delicate vegetation is untouched by the tornadic gravel-cane that imperils our intrepid cast elsewhere.
3. Forests, glaciers, and scrub-desert can be found within two miles of each other.
4. Alien robots understand English, but will speak only three words.
5. In a mere thirty years, we will have interstellar-capable spacecraft whose furnishings and electronics remain intact and operational despite a day's immersion in water flooding the inside of the ship.
6. In these 2050s, chip-implants are the basis of security access, but fingerprint- and facial-recognition redundancy has been forgotten.
7. Flare gun kits come with only three flares despite room for a dozen more in the case, and flares costing like a dollar apiece, tops.
8. The airlock you're trapped inside will audibly count down the ten seconds until the outer door opens, evacuating you into a space (and a grisly death if you're not suited up), giving you plenty of time to abort...if only you could reach the controls on the other side of the door. Because there aren't controls on your side. Because space-station designers are thoroughgoing sadists who know these sorts of things are going to happen.
9. Precocious teenage girls know that a handful of salt will annoy the alien, fuel-eating eels swimming around in a flooded ship's hold. (The eels are eating a delicious hydrocarbon fuel because we're apparently still using those in spaceships. And because the hole in the hull that let the eels into the fuel doesn't just let all the fuel leak out of the ship.)
10. The mechanic will keep a pet chicken, because the producers have foreseen the need for someone in the cast to possess a smidgeon of charisma.
11. Oreos bind dysfunctional families together. Until they're gone, which is quickly.
12. Toby Stephens was so desperate for work after the conclusion of "Black Sails" that he agreed to a part whose script called for him to portray a cucked moron subservient to his domineering almost-ex and disobedient children. He gets less respect than Rodney Dangerfield.
13. If your wife slept with the MADtv UBS delivery-guy, you'll raise his kid as your own.
14. Communications employ old-style corded-wire hand-sets because those looked so cool in the "Battlestar Galactica" reboot, which had them for rational reasons as the Cylons could eavesdrop on WiFi.
15. When what you really should have on hand is a big, strong male to do a man's job shoving that heavy metal cylinder home in the engine-bay, it's a good thing there's another girl available when you need her there to demonstrate that you don't need no man after all. Estrogen-bonding FTW!
16. Jupiter landing craft share the same quality suspension parts as a 1999 Chrysler minivan.
17. A planet whose orbiting satellite is either so close or so large that its diameter is about twenty times Earth's moon won't be constantly subjected to magnitude-11 earthquakes and ocean tides oversweeping its continents.
18. Will Robinson is the only teenage boy in the universe hesitant to accept the gun that his pet robot 3D-printed for him. --Printed on the ship's 3D-printer despite weapon schematics being off-limits to everyone, including his father, the ship's captain. Lucky password guess?
19. Due to budgetary constraints, the show will now be named "Lost in British Columbia" for the rest of the season.
20. When you need your robot to push a 100-ton boulder out of the way, there's nothing it can't do when the ground it's standing on provides 100 tons worth of traction. Despite this apparent fortitude, it will later come apart at the seams during a fifty-foot fall.
21. The mechanic is the most gregarious and winsome person in a parsec. Naturally, he will be treated like sheep-dip by cast regulars whom we'd rather see less of. Much less of.
22. Communications take thirty minutes to come back on after a trivial, non-worrisome power-spike of the sort that can be caused by a boy deliberately flipping a circuit-breaker.
23. It's OK, Will; I understand perfectly: I would love your amnestic alien murderbot (concept *totally* stolen from "The Iron Giant") more than the rest of your family too. In fact, I would also run away from them with it on an uncharted planet with just a backpack full of supplies, because adventure-bound like Alby Mangels.
24. Claps make the flowers open, roars make them close. Evolutionary reason unknown (do clappers pollinate?)
25. You can save serious couch-change on monster CGI by having a couple guys run through foliage under a tarp in the distance.
26. Predator-cam is shaky-cam.
27. Robots understand all manner of danger that could potentially face Will Robinson, except for that posed by gravity while balancing on a tree trunk dropped across a bottomless chasm.
28. According to children mistrustful of adults, the amnestic alien murderbot needs to "remain our little secret", and they are actually capable of persuading others of this.
29. A hungry monster scared away won't eat a straggler sneaking along a few minutes later, alone at night. (Granted, the doctor stole a gun...but the monster wouldn't know that.)
30. Solar-powered electric-battery cars are just as big of pieces of crap in the future as they are today! (Maybe you didn't need to run all ten headlights at night?)
31. "He" is just a pronoun. It's no big deal, really. Why you so triggered?