Tuesday, 22 April 2014

'THE FALLACIES OF SCIENTIFIC UNDERSTANDING' - The Limits to Analytical Knowledge- MASANOBU FUKUOKA

2.  THE FALLACIES OF SCIENTIFIC UNDERSTANDING
The Limits to Analytical Knowledge


The  scientific  method  consists  of  four  basic  steps. The  first  is  to  consciously  focus
one’s attention on something and to observe and examine it mentally. The second step is
to use one’s powers of discernment and reasoning to set up a hypothesis and formulate a theory based on these observations. The third is to empirically uncover a single principle
or  law  from  concurring  results  gathered  through  analogous  experiences  and  repeated
experimentation.  And  finally,  when  the  results  of  inductive  experimentation  have  been applied and found to hold, the final step is to accept this knowledge as scientific truth and
affirm its utility to mankind.
As this process begins with research that discriminates, breaks down, and analyzes, the
truths  it  grasps  can  never  be  absolute  and  universal.  Thus  scientific  knowledge  is  by
definition fragmented and incomplete; no matter how many bits of incomplete knowledge
are  collected  together,  they  can  never  form  a  complete  whole.  Man  believes  that  the
continued dissection and deciphering of nature enable broad generalizations to be made
which  give  a  full  picture  of  nature,  but  this  only  breaks  nature  down  into  smaller  and smaller fragments and reduces it to ever greater imperfection.
The judgment by man that science understands nature and can use it to create a more
perfect  world  has  had  the  very  opposite  effect  of  making  nature  incomprehensible  and has  drawn  man  away  from  nature  and  its  blessings,  so  that  he  now  gladly  harvests
imitation crops far inferior to those of nature.
To  illustrate,  let  us  consider  the  scientist  who  brings  a  soil  sample  back  to  the
laboratory for analysis. Finding the sample to consist of organic and inorganic matter, he
divides  the  inorganic  matter  up  into  its  components,  such  as  nitrogen,  potassium,
phosphorus,  calcium,  and  manganese,  and  studies,  say,  the  pathways  by  which  these
elements are absorbed by plants as nutrients. He then plants seeds in pots or small test
plots to study how plants grow in this soil. He also carefully examines the relationships
between  microorganisms  in  the  soil  and  inorganic  soil  components,  and  the  roles  and effects of these microorganisms.
The wheat that grows of its own accord from fallen  seed on the open ground and the
wheat  planted  and  grown  in  laboratory  pots  are  both identical,  but  man  expends  great time, effort, and resources to raise wheat, all because of the blind faith he has in his own
ability to grow more and better wheat than nature. Why does he believe this?
Wheat growth varies with the conditions under which the wheat is grown. Noting a
variation in the size of the heads of wheat, the scientist sets about to investigate the cause.
He discovers that when there is too little calcium or magnesium in the soil within the pot, growth is poor and the leaves whither. When he artificially supplements the calcium or magnesium, he notes that the rate of growth increases and large grains form. Pleased with
his success, the scientist calls his discovery scientific truth and treats it as an infallible
cultivation technique.
But  the  real  question  here  is  whether  the  lack  of  calcium  or  magnesium  was  a  true
deficiency.  What  is  the  basis  for  calling  it  a  deficiency,  and  is  the  remedy  prescribed
really in the best interests of man? When a field really is deficient in some component,
the first thing done should be to determine the true cause of the deficiency. Yet science
begins by treating the most obvious symptoms. If there is bleeding, it stops the bleeding.
For a calcium deficiency, it immediately applies calcium. If  this  does  not  solve  the  problem,  then  science  looks  further  and  any  number  of reasons may come to light: perhaps the over-application of potassium  reduced  calcium
absorption by the plant or changed the calcium in the soil to a form that cannot be taken
up by the plant. This calls for a new approach. But behind every cause, there is a second and a third cause.  Behind  every  phenomenon  there  is  a  main  cause,  a  fundamental  cause,  an
underlying cause, and contributing factors. Numerous causes and effects intertwine in a
complex pattern that leaves little clue as to the true cause. Even so, man is confident of
the  ability  of  science  to  find  the  true  cause  through  persistent  and  ever  deeper
investigation and to set up effective ways of coping with the problem. Yet, just how far
can he go in his investigation of cause and effect?


There Is No Cause-and-Effect in Nature


Behind every cause lie countless other causes. Any attempt to trace these back to their
sources only leads one further away from an understanding of the true cause.
When soil acidity becomes a problem, one jumps to the immediate conclusion that the
soil does not contain enough lime. However this deficiency of lime may be due not to the
soil  itself,  but  to  a  more  fundamental  cause  such  as  erosion  of  the  soil  resulting  from
repeated cultivation on ground exposed by weeding; or perhaps it is related to the rainfall
or temperature. Applying lime to treat soil aciditythought to result from insufficient lime
may bring about excessive plant growth and increaseacidity even further, in which case
one  ends  up  confusing  cause  with  effect.  Soil  acidity  control  measures  taken  without
understanding  why  the  soil  became  acidic  in  the  first  place  may  be  just  as  likely  to
prolong acidity as to reduce it.
Right after the war, I used large quantities of sawdust and wood chips in my orchard.
Soil  experts  opposed  this,  saying  that  the  organic  acids  produced  when  the  wood  rots
would  most  likely  make  the  soil  acidic  and  that  to  neutralize  it  I  would  have  to  apply
large  quantities  of  lime.  Yet  the  soil  did  not  turn acid,  so  lime  was  not  needed.  What happens  is  that,  when  bacteria  start  decomposing  the  sawdust,  organic  acids  are
produced. But as the acidity rises, bacterial growth levels off and molds begin to flourish.
When the soil is left to itself, the molds are eventually replaced by mushrooms and other
fungi,  which  break  the  sawdust  down  to  cellulose  and  lignin.  The  soil  at  this  point  is
neither acidic nor basic, but hovers about a point of equilibrium.
The decision to counteract the acidity of rotting wood by applying lime only addresses
the situation at a particular moment in time and under certain assumed conditions without
a  full  understanding  of  the  causal  relationships  involved.  Nonintervention  is  the  wisest course of action.
The same is true for crop diseases. Believing rice blast to be caused by the infiltration of  rice  blast  bacteria,  farmers  are  convinced  beyond  a  doubt  that  the  disease  can  be
dispelled  by  spraying  copper  or  mercury  agents.  However,  the  truth  is  not  so  simple.
High  temperatures  and  heavy  rainfall  may  be  contributing  factors,  as  may  the  overapplication of nitrogenous fertilizers. Perhaps flooding of the paddy during a period of high  temperature  weakened  the  roots,  or  the  variety of  rice  being  grown  has  a  low
resistance to rice blast disease.
Any number of interrelated factors may exist. Different measures may be adopted at different  times  and  under  different conditions,  or  a  more  comprehensive  approach applied. But with a general acceptance of the scientific explanation for rice blast disease comes  the  belief  that  science  is  working  on  a  way  to  combat  the  disease.  Steady improvement  in  the  pesticides  used  for  the  direct  control  of  the  disease  has  led  to  the present  state  of  affairs  where pesticides  are  applied  several  times  a  year  as  a  sort  of panacea. But as research digs deeper and deeper, what was once accepted as plain and simple fact is no longer clear, and causes cease to be what they appear.
For instance, even if we know that excess nitrogenous fertilizer is a cause of rice blast
disease, determining how the excess fertilizer relates to attack by rice blast bacteria is no
easy matter. If the plant receives plenty of sunlight, photosynthesis in the leaves speeds
up,  increasing  the  rate  at  which  nitrogenous  components  taken  up  by  the  roots  are assimilated as protein that nourishes the stem and  leaves or is stored in the grain. But if cloudy weather persists or the rice is planted too  densely, individual plants may receive insufficient light or too  little carbon dioxide, slowing photosynthesis. This may in turn cause an excess of nitrogenous components to remain unassimilated in the leaves, making
the plant susceptible to the disease.
Thus,  an  excess  of  nitrogenous  fertilizer  may  or  may  not  be  the  cause  of  rice  blast
disease. One can just as easily ascribe the cause to insufficient sunlight or carbon dioxide,
or to the amount of starch in the leaves, but then it turns out that to understand how these
factors relate to rice blast disease, we need to understand the process of photosynthesis.
Yet modern science has not yet succeeded in fully unlocking the secrets of this process
by which starch is synthesized from sunlight and carbon dioxide in the leaves of plants.
We know that rotting roots make a plant susceptibleto rice blast, but the attempts of
scientists  to  explain  why  are  less  than  convincing. This  happens  when  the  balance
between the surface portion of the plant and its roots breaks down. Yet in trying to define
what  that  balance  is,  we  must  answer  why  a  weight  in-equilibrium  in  the  roots  as
compared with the stalk and leaves makes the plant  susceptible to attack by pathogens,
what constitutes an “unhealthy” state, and other riddles that ultimately leave us knowing
nothing. Sometimes the problem is blamed on a weak strain ofrice, but again no one is able to
define what “weak” means. Some scientists talk of the silica content and stalk hardness,
while others define “weakness” in terms of physiology, genetics, or some other branch of
scientific  learning.  In  the  end,  we  gradually  fail  to  understand  even  those  causes  that
appeared clear at first, and completely lose sight of the true cause. When man sees a brown spot on a leaf, he calls it abnormal. If he finds an unusual bacteria  on  that  spot,  he  calls  the  plant  diseased. His  confident  solution  to  rice  blast disease is to kill the pathogen with pesticides. But in so doing he has not really solved the problem of blast disease. Without a grasp of the true cause of the disease, his solution cannot  be  a  real  solution.  Behind  each  cause  lies  another  cause,  and  behind  that  yet another. Thus what we view as a cause can also be seen as the result of another cause.
Similarly, what we think of as an effect may becomethe cause of something else. The  rice  plant  itself  may  see  blast  disease  as  a  protective  mechanism  that  halts excessive  plant  growth  and  restores  a  balance between  the  surface  and  underground
portions  of  the  plant.  The  disease  might  even  be  regarded  as  a  means  by  nature  for
preventing  the  overly  dense  growth  of  rice  plants,  thus  aiding  photosynthesis  and
assuring the full production of seed. In any case,  rice blast disease is not the final effect,
but merely one stage in the constant flux of nature. It is both a cause as well as an effect.
Although  cause  and  effect  may  be  clearly  discernible  when  observing  an  isolated
event at a certain point in time, if one views nature from a broader spatial and temporal
perspective, one sees a tangled confusion of causalrelationships that defy unraveling into
cause and effect. Even so, man thinks that by resolving this confusion down to its tiniest
details and attempting to deal with these details at their most elementary level, he will be
able  to  develop  more  precise  and  reliable  solutions.  But  this  scientific  thinking  and
methodology only results in the most circuitous andpointless efforts.
Viewed up close, organic causal relationships can be resolved into causes and effects,
but when examined holistically, no effects and causes are to be found. There is nothing to
get ahold of, so all measures are futile. Nature has neither beginning nor end, before nor
after, cause nor effect. Causality does not exist.
When there is no front or back, no beginning or end, but only what resembles a circle
or sphere, one could say that there is unity of cause and effect, but one could just as well
claim that cause and effect do not exist. This is my principle of non-causality.
To  science,  which  examines  this  wheel  of  causality  in  parts  and  at  close  quarters,
cause and effect exist. To the scientific mind trained to believe in causality, there most
certainly  is  a  way  to  combat  rice  blast  bacteria.  Yet  when  man,  in  his  myopic  way,
perceives rice disease as a nuisance and takes the  scientific approach of controlling the
disease with a powerful bactericide, he proceeds from his first error that causality exists to subsequent errors. From his futile efforts he incurs further toil and misery.

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