I don't know... I think you are saying to follow the great commandment - I'm not confident I know what that means, but I think it means to latch on to one specific person, an idol, as it were. To have no regard above that person. I don't think that's reasonable if that person didn't exist, and/or you can't prove that they were as great as legends would have you believe. It is in that sense arbitrary. If I would say, my mother is MY MOTHER, and that means more than all that she thinks and does and says, that I should do everything she says is best, without questioning it (I think this is another commandment). I'm really in deep shit if I do what my mother does and follow her rules to navigate my life. She's right some of the time, but I have to use my brain and gather wisdom from various sources - that seems reasonable. I don't think Jesus Christ "said" a lot of "unreasonable" things... I don't really know and rely on cultural references to it. That doesn't mean I want to uphold him as the ultimate guide. If he says one thing that makes sense to me (is reasonable), does it follow that he knows everything and I should do whatever he thinks is good? I don't think there's a god, for one thing, so this guy, he's putting together a package of inspirational thoughts, a lot like Wayne Dyer or Oprah Winfrey.
Here is a blog: http://www.livingoprah.com/
"In 2008, I performed an experiment. For an entire year, I lived my life completely according to the advice of Oprah Winfrey. I was VERY curious...as Oprah frequently urges her viewers and readers to "Live Your Best Life," I wondered what would happen if one woman committed whole-heartedly to her lifestyle suggestions. Would the costs of living as Oprah prescribes (financial, energy, time spent) be worth the results? ... This blog is the journal of my experience of Living Oprah." -- Robyn Okrant
Here is her book on the experience, and website:
I mean, that makes just as much sense, right? Find one person who knows everything (or in fact, compiles from a lot of advisors on many subjects) and wants you to have your "best life," and acts as a resource what this best means and is. Someone actually went ahead and did that, does that mean Oprah is a deity, or will be in 600 years? I don't think many people do everything she says, but at least some people follow at least some things she says to the letter - if they are left to their own decisions on what's "best" for them, in a sense, they don't know, but Oprah recommends -this- so they do -this-.
Jesus, to compare, was also a guy who was saying some things that made sense, and had some charisma, I suppose, but not a lot of original thought, just like Oprah is really the vortex of a lot of information you can find yourself from other people. Some of it is smart or helpful. Not all of it is, and you are still free to take some advice from other people who haven't been featured on Oprah.
I think what you're saying is that if you just ask WWJD, you can wear that in your brain (or a bracelet!) and figure out what the right thing to do is, if that's what you mean by portable, and that you need not think for yourself, Jesus always has the right answer, and if you rely on a variety of sources of wisdom, you might get confused and indecisive and make some poor choices. Bullcrap!