"Agreed. Of the 2019 line-up shown I would place them in in the following order with zero brand loyalty:1) Dodge2) Ford3) Lego"

"I'd be very curious to see how vehicle safety design standards changed in the early 90's. More and more vehicle designers are constrained by regulations that dictate aspects for things such as pedestrian safety. Sometimes they are given costly design-arounds when performance is on the line (e.g. https://jalopnik.com/5405312/nissan-gt-r-hits-tow-hitch-causes-18000-repair-bill) I imagine there might have been something about trucks and SUV's creating more of a peripheral pedestrian/bicyclist deflection functionality versus the pedestrian catcher of yesteryear. Take the '93 Dodge picture you provided for example. You'll never see OEM vertical bumper protectors anymore. Our safety standards are not as pedestrian focused as European standards, but since international sales make up for a large revenue stream for manufacturers, it would make sense that American car companies want to keep their international sales options as open as possible. "

"Completely agreed. More information, no matter how distilled it is, is dangerous. It only serves to distract a rider's attention. Same goes for GPS of any sort no matter how high into view you place the unit. My ideal cluster is a big analog or analog style tach, and large numbers indicating speed. I don't even like having a fuel gauge... I'd rather just have a dummy light that tells me when I'm 50-miles from empty. "

"I'm a fan of PB Blaster myself. "

"Curious as to why they had the undulating walls on the interior where is screws with livable/functional space vs. placing them on the outside. "

"Did watch the video? He talks about NOT leaving clumps that would otherwise lead to weak spots. Instead of simply criticizing the vid, why not provide some basis/experience/online examples/etc for your suggestion of using a poly sealer so we might learn something."

"Amunta — agreed. complex solution to something many don't see as a problem. John — You keep talking about energy as if it were power to continue arguing your point. https://gph.is/2uFe0Wu"

"I misstated the difference in power. It would be 25x. Perhaps I have a misunderstanding of the maths too. All the maths. "

"John Doe, 1) I do not have a "misunderstanding of physics."2) You are correct. I misstated your confusion over the first law of thermo. Last I checked, it regards the conservation of ENERGY — NOT POWER.Now... If a mass moves over a distance, it does the same amount of work regardless of time. If it is done over a longer period of time, by definition requires less power. If you are running forward at the same pace with or without a suspension pack, yes — your power in a forward motion remains unchanged regardless of the backpack. What changes however is the vertical vector which you see as impact. Impact is just power exerted over a very short distance. Instead of having an additional 20kg of backpack contributing to impact over lets say 2mm of deflection of your shoes, that impact is translated to lets say 5cm of travel; a longer distance, and CERTAINLY a longer period of time. Thus, based on power being work/time (making a conservative assumption that the time of travel of the pack is directly related to the distance) — that would result in approx. 50x less power associated with the pack. Is it 40-80 watts? Not a clue. I'm sure they have their own data and assumptions they have based that estimate on. But it certainly requires less power. "

"It wouldn't violate the first law of thermodynamics the same way that you can't score a touchdown in baseball. You are confusing power associated with kinetic energy with heat energy. Power = work/time. Work = Force/Distance. The suspension albeit does not change the load, but changes the distance over which "work" is done when taking a step. And that work is performed over a longer period of time due to the suspension. Thus, limiting the power calculation as well. So yes, it makes sense, that it requires less human power output and thus  "metabolic energy" to carry a pack with this suspension. The real questions are... 1) How heavy is the mechanism?2) Is it annoying? 3) Will it be relegated to use by google glasses wearers?"

"Curious as to how it performs with a front / AWD vehicle. "

"Cool. Good catch. "