Itzhak David Goldberg is a Professor Emeritus at Albert Einstein College of Medicine
“Give me a place to stand, and with a lever I will move the world." Archimedes
Somewhere in your brain, at this very moment, a neuron is waiting.
Thousands of signals have already reached it, crossing microscopic synapses and leaving behind effects too small to notice. One arrives, then another, then another, each inconsequential, while nothing happens. The neuron remains silent. Then one more signal crosses the synapse. It may be no stronger than the thousands that preceded it. Still, this time it crosses the critical threshold, an action potential bursts into being, and an electrical impulse races down the neuron, activating a neural path.
Why this signal? Why now?
Because the decisive moment is rarely created by the final event alone. Each insignificant event has silently carried the system toward the edge, until one last, ordinary addition becomes extraordinary.
Tiny electrical currents gather within the cardiac cells, each too small on their own to produce a heartbeat. When the threshold is finally crossed, an electrical wave sweeps through the heart, triggering the muscle to contract. In that almost invisible instant, accumulation turns into action, and the heart beats again.
A child discovers the same mystery while building a tower of blocks. Brick upon brick until one more ordinary brick is placed near the edge. For an instant, the tower seems to hesitate, suspended between standing and falling before crashing across the table.
We give that threshold a modern name: the tipping point.
Nine Jews may gather in a room to pray, yet something is still missing. When a tenth man enters the room, no different from those who arrived before him, his presence changes the nature of the gathering. Suddenly there is a minyan, an edah enabled to form a communal prayer service. The tenth person is the tipping point-his arrival transforms a collection of individuals into a halakhic community.
For generations, people have spoken of “the straw that broke the camel’s back": not a massive burden suddenly imposed, but one last almost weightless addition landing upon a load that has been accumulating all along. The final straw triggers the collapse only because everything before it has brought the system to the edge.
In 2000, Malcolm Gladwell wrote the bestselling book The Tipping Point: How Little Things Can Make a Big Difference. His subject was social epidemics, the mysterious moment when an idea, fashion, or behavior crosses a threshold and suddenly spreads rapidly. However, the enduring power of the phrase reaches far beyond sociology. It describes the strange dynamics of change itself when much can happen quietly, invisibly, until one small addition makes the before and after look like different worlds.
Long before we knew of neurons, action potentials, or a scientific language of critical thresholds, Maimonides described moral life with an image of a balance poised at just such an edge. In Hilkhot Teshuvah 3:4, following the Talmud in Kiddushin 40b, he writes:
לפיכך צריך כל אדם שיראה עצמו כל השנה כולה כאילו חציו זכאי וחציו חייב, וכן כל העולם חציו זכאי וחציו חייב... עשה מצוה אחת-הרי הכריע את עצמו ואת כל העולם כולו לכף זכות.
A person should imagine himself throughout the year as though his merits and failures were perfectly balanced, and he should imagine the entire world balanced with him, so that one additional mitzvah may tip himself and the world toward merit.
The word Maimonides chooses is remarkable: הכריע.
The Hebrew root of להכריע carries the sense of weight, motion, making one side prevail, incline the balance, and tip the scale.
Maimonides asks us to live with the unsettling possibility that after everything we have accomplished and experienced, the successes and failures, the scale may still be trembling at the center when another entirely ordinary choice presents itself.
I. L. Peretz gave this image a haunting literary form in The Three Gifts. A soul arrives before the heavenly tribunal and discovers that its good and evil deeds balance one another so closely that the scale refuses to move. The soul is sent back to earth in search of merits that might alter its fate and the soul returns with remnants of acts of faith and sacrifice by Jewish martyrs whose physical forms appear almost worthless, yet whose moral weight is enormous -- and the scale is tipped.
Tanya places the drama of the tipping point inside the human being. Rabbi Shneur Zalman of Liadi describes the body as the “small city" (עיר קטנה) of Ecclesiastes, contested by two kings-the divine soul and the animalistic soul. Each struggling to conquer the same territory and rule over thought, speech, and action. For the beinoni, the intermediate person, the city remains contested. The battle may continue unabated throughout a lifetime, yet at any moment its outcome turns upon a single act of human choice. Here the Tanya and Maimonides meet.
The Rambam teaches that one mitzvah can be מכריע, tip oneself and the entire world toward merit, while the Tanya looks inward and describes the drama within the “small city" of the self. The struggle may have lasted years, but the tipping point is the moment when choice becomes הכרעה.
Rabbi Joseph B. Soloveitchik finds in Maimonides’ image of the balanced scale something deeper than a metaphor for judgment. It also helps illuminate a striking feature of Hilkhot Teshuvah. Why, in a work constructed with precision, does Maimonides interrupt his laws of repentance with an extended philosophical discussion of בחירה חופשית, free will? If free choice is, as Maimonides himself calls it, an “עיקר גדול" and “עמוד התורה והמצוה"-a great principle and pillar of the entire Torah-one might have expected to find it among the foundations of Judaism in Hilkhot Yesodei HaTorah. Instead, Maimonides places it at the very heart of Hilkhot Teshuvah.
For Rabbi Soloveitchik, the placement reveals something essential about repentance. Habit, character, failure, and the accumulated weight of the past exert enormous force, but they do not own the final word. לכל אדם נתונה רשות-the power remains in human hands.
Free will means that a person can interrupt the apparent inevitability of his own history and create a different self and a new future. Repentance is a creative act through which one participates in determining the person one will become.
The language of Maimonides therefore unfolds like a sequence:
שיראה עצמו - עשה מצוה אחת - הכריע.
First, see yourself as consequential. Maimonides is not asking us to calculate the cosmic weight of a particular mitzvah, but to cultivate a profound awareness of our place in the world. Never imagine that you are too small to matter, or that a single deed is too minor to count. Then act, for it is through action that the balance finally moves. The past has already placed its weight upon the scale, but the next act-and the direction in which the scale will move-still lies in our hands.
It is a call to action. We may never know how close the balance is to its tipping point, or the deed that changes everything. But that uncertainty is precisely what gives every choice its urgency.
In one of Rabbi Joseph B. Soloveitchik’s most luminous memories of his father, Rabbi Moshe Soloveitchik, the two stood together just before Neilah on Yom Kippur, watching the autumn sun sink toward the horizon. His father turned to him and commented that this sunset was unlike every other sunset, because with this setting of the sun, forgiveness itself was being bestowed. The image is a perfect embodiment of a tipping point.
Thousands of signals may cross a synapse before one finally causes the neuron to fire; tiny electrical currents gather in the heart before the threshold is crossed and the heart beats again; countless human acts may likewise accumulate before the tipping point is reached.
We wait for the great moments of life to announce themselves, but Maimonides teaches that the decisive moment may look utterly ordinary. One choice, one mitzvah, one seemingly ordinary act, at the tipping point.
Because sometimes one becomes enough.