Nowism versus Balance?

In recent years among the many, many spiritual books, self-help books and assimilated, there have been two competing "truths". The first, embodied by 'the power of now', living only in the present instant, with books like the one with the same name by Eckhart Tolle, and the second embodied by this more fluffy notion of 'balance' accompanied by the injunction to find balance in your life, balance your personal and professional lives, eat a balanced diet, etc.

However, it seems strange to me that no one I have seen in the spiritual and self-help circles has written much about balance in relation to the power of now. I guess the main reason is that if you do you tend to invalidate the whole notion, I mean you can't live mostly in the present moment and be in the now. It's kind of like the joke about being somewhat pregnant, it's actually an either/or situation.

Trying to live only the present moment can, without too much intellectualization required, could lead the unsuspecting 'nowist' to hedonism, short-termism, egoism and probaly many other isms. That said, applying the notion of 'nowism', living in the present, participating fully in what you are doing, is something that is important to remember and, more importantly, to do, when appropriate. It is definitely easy to be so preoccupied with the future or the past that you don't participate fully in 'what's going on' and in that sense the injunction to live in the now is very useful.

A wider application of the power of now mandate of living in the present moment, as the future does not yet exist and the past only exist in our minds, is more difficult to apply. On the one hand, for those of us who have studied a bit of physics there is no such thing as past-present-future in such straightforward terms. While the injunction is probably useful for highly-evolved beings, if something like that exists, for the rest of us who are living in the time continuum it would be quite dangerous to apply the injunction 24/7. Which leads to my thinking on why we have not seen more people reminding us to balance this too. The tyranny of balance has been thrown at us at all levels in recent years, "you need to find balance", from balancing your finances to balancing all aspects of your personal, social, professional, educational, emotional, physical, and 'leisureal' (couldn't find an '-al' for that one) lives...

So what would balance in respect to the power of now look like? I guess it would imply that you experience the present fully (whatever that means) while still planning for the future (e.g. making plans) and remembering the past (e.g. using experience to avoid past mistakes). Could it be that simple???

PS Just for fun and thought: What's going on, Marvin Gaye

Mother, mother - There's too many of you crying
Brother, brother, brother - There's far too many of you dying
You know we've got to find a way - To bring some lovin' here today 

Father, father - We don't need to escalate
You see, war is not the answer - For only love can conquer hate
You know we've got to find a way - To bring some lovin' here today

Picket lines and picket signs - Don't punish me with brutality
Talk to me, so you can see - Oh, what's going on
What's going on - Ya, what's going on - Ah, what's going on

In the mean time - Right on, baby - Right on - Right on

Father, father, everybody thinks we're wrong
Oh, but who are they to judge us - Simply because our hair is long
Oh, you know we've got to find a way - To bring some understanding here today

Picket lines and picket signs - Don't punish me with brutality
Talk to me - So you can see - What's going on - Ya, what's going on
Tell me what's going on - I'll tell you what's going on - Uh
Right on baby - Right on baby 

PS2 Thanks Marvin