Wants and Needs
Needs
Human needs are often understood as whatever is necessary to enable
a human to continue to live. It is generally understood that humans
need food, clothing, and shelter, in ways that they do not need
art and literature and perfume. People can and do die of starvation
and exposure. Nobody dies of the lack of music or good books.
Merely listing human needs - food, clothing, shelter, and so on -
does not explain how these things, and not others, act to maintain
life.
Food
Nobody wishes to merely possess food. They need to eat it.
By eating food, humans take on a store of chemical energy,
which provides them enough energy to sustain them for some
future period of time.
Humans are always expending energy, every second of every day
of their lives. This energy goes into the work that a heart does
in pumping blood around the body, and the work that lungs perform
inhaling and exhaling air, and the work that muscles perform in
walking around or lifting objects, and the work that other organs
perform in synthesizing compounds, sending messages, removing
wastes. All these activities, in one way or other, release heat,
and act to warm up the human body. All the energy that a human
being receives in the form of food, or as heat from fires or
from hot food, is ultimately released through conduction from
the body surface, or in water vapour from lungs or sweat.
Human beings thus remain in energy balance, expending as much
energy as they receive.
Humans generally try to maintain
their internal body temperature at 37 degrees Celsius. This is
the optimal operating temperature of the human machine, rather as
an automobile engine has an optimal temperature range, below which
engine oils become viscous and act to inhibit moving parts, and above
which engine coolants (water) may boil. At temperatures much above or
below 37 degrees, some essential body processes cease to operate.
The rate at which humans lose heat largely determined by the
temperature of their environment, which is usually lower than 37
degrees. The greater the temperature difference between body core
and the external environment, the greater the rate at which heat
is lost. An unclothed human in cold high latitudes
loses heat far more rapidly than a human in hot low-lying tropical
regions. In cold climates, the threat is that body temperature may
fall too low. In hot climates, the threat is that body temperature
may rise too high.
In cold regions, without clothing, the only way that a
human can maintain body core temperature is to keep busy, or remain
in close proximity to a heat source, such as a fire. In cold
climates, near-naked football players only manage to maintain
core body temperature through vigorous activity. Where people rely
on increased physical activity to maintain body temperature, they
must take on more energy - eat more food - to offset their increased
energy expenditure. Or, if they rely on the heat from fires to
offset their body heat loss, they have to burn more wood. Eating
hot food serves to directly raise body temperature.
A similarly unclothed human in a hot climate must often remain
relatively inactive during the hottest part of the day, lest that
activity raise body temperature too high. Hence the practice of
the afternoon siesta, when temperatures are highest. Or else they must
maintain proximity to something cold, such as a cold water fountain
or pool or river. The practice of bathing may historically have been
more about keep cool than keeping clean. Food consumption, by
contrast with a cold climate, was relatively low.
(There may be cultural traits associated with climates.
"Keeping busy", in a cold northern european climate, was a matter
of necessity. If one had nothing to do, it was necessary to invent
some activity in order to continue to receive the heat generated by
muscular activity. At the same time, eating substantial amounts of hot food
at regular intervals through the day was necessary to fuel this
level of constant activity. "Keeping busy" in a hot tropical climate,
by contrast, is suicidal. Energetic activity in a hot climate tends
to raise body temperature, if that heat cannot be lost through
evaporation (panting and sweating), or body surface conduction and
convection. In the hottest climates, keeping physical work to a minimum
was the enforced way of life.)
The upshot is that the same meal with the same calorific content
will provide a longer period of future existence in a warm climate
than a cold climate, because humans in a cold climate will be
generally more active, and hence consuming food at a higher rate,
than humans in a hot climate. The energy content of food is not a
measure of the value of food to humans in forward days of life.
Other factors, including environmental temperatures, body mass,
age and sex also influence human energy requirements. In general,
the larger the human, the higher their energy consumption. And the
older the adult humans, the lower their energy consumption. And, in
general, women have lower energy consumption than men.
Since food requires physical work to be done to acquire it,
then food is something which costs some amount of energy to
come by, and which yields some amount of energy. If humans perform
physical work at the same rate whether they are busy or idle,
then the amount of energy required to get food can represented
by some amount of human time given over to work, and the energy
this food supplies can be represented as some amount of idle time.
Shelter
Both clothing and housing perform essentially the same task, and
so can be lumped together as shelter. Both serve to insulate humans
from the environment, with clothing taking the form of a kind of
glove which humans don, and housing providing an insulated space
in which humans can move. The major difference between the two is
that houses also provide shelter for human possessions which would
otherwise rot or rust or be damaged, and houses are - in cold climates -
usually heated.
In cold climates, shelter provides a layer of insulation which
reduces the rate at which humans lose heat, and therefore the rate
at which humans must acquire food energy. In a cold climate, a clothed
human does not have to be as active as an unclothed human. Thus a
clothed human has a reduced requirement for food, and also for
direct heating using fuel fires, central heating systems, and so on.
In hot climates, shelter acts to reduce the rate at which humans
gain heat. Clothing may act as a sun screen, and houses maintain
a cool internal environment while the external environment is hot.
Food, shelter and fuel are intimately connected with each
other, in that all act to alter human energy transfers to the environment.
In a cold climate, humans can either spend their time in heated houses,
remaining comparatively inactive, and eating relatively little - or
else they can spend their time in the open environment, living highly
active lives, eating a lot of food, and only finding insulated shelter
to sleep.
In Northern Europe, some centuries ago, most of the population
lived and worked on the land. A great deal of work was performed
outdoors. They can be taken to have lived active and energetic lives,
and to have had high food requirements. After the industrial revolution,
most of the population worked in factories or offices or shops, in
sheltered and heated environments. In that environment, their clothing
levels were reduced. At the same time, with most heavy work being
performed by machines, their activity levels fell, and their food
consumption was reduced. The long term trend has been away from
a highly active, heavily clothed, and largely outdoor life,
to a relatively inactive, lightly clothed, mostly indoor life.
This has meant a shift away from heavy woollen clothes to
light cottons, and away from high calorie suet puddings to low
fat, low calorie diets, and from relatively unheated housing to
insulated and heated housing. 20th century humans wear less clothes,
and eat less food, but burn far more fuel than 15th century humans.
The Necessities of Life
Food assures the continuity of life. Shelter assures the continuity
of life. The underlying nature of these human needs is that they
provide time for people, forward days of life. The value of human
needs is measured in the time - hours, days, years - that they supply.
A necessity is anything that makes time for men. Necessity is not just
food and shelter, but all the tools and techniques which serve to
expedite their production, or increase their value.
But food, shelter, and anything else that creates time for humans
is only acquired at a cost. Food in the form of bread requires that
men grow wheat, and harvest its seed, and grind it into flour, and
bake it into bread. And shelter in the form of clothing requires that
sheep be sheared of their wool, and the wool spun into fibres, and
those fibres woven into cloth, and the cloth cut and sewn into
garments. Shelter in the form of housing requires that stones and
bricks and timber be assembled into walls and roofs and floors and
doors and windows. Fuel for the hearth must be gathered and brought
to the fire. Thus while needs provide time for men, they also cost
men time in effort to come by them.
If the time cost of providing food and shelter is the same as the
time value realized through their use, then human life would be
an unending round of toil. For then a man could only make in one
day what would give him one day of life. If the cost of human needs
exceeds their value, then men cannot live. Only if the value of
human needs is greater than or equal to their cost does human life
become possible.
Where the cost of necessities is less than their value, then
life is not continuous work to meet needs, but is interspersed
by periods of idle time, or leisure. The more valuable a necessity,
and the lower its cost, the greater the idle time that results.
If the necessites which provides someone a year of life can be found
at a cost to them of three months of effort, then the remaining nine
months are idle time, or leisure time, may be disposed
of in whatever way that person pleases.
Wants
If humans needs create time for human life, human wants arise
and can only be satisfied during idle time. Human wants consist
of things which are desired for themselves - amusements, diversions,
luxuries, toys, games, art, music, literature, and countless others.
If human need is singular, human wants are plural.
Human wants appear when people have idle time on their hands, and
begin to wish to amuse themselves in their idle hours, in one way
or other. Human wants act to fill idle time, to use up idle time.
The problem for idle people is not how to come by idle times,
but what to do with it once they have got it.
What is commonly called "wealth" consists in human wants. "Rich"
men are commonly held to be those who possess large mansions, with
stables and gardens, yachts and fast cars and airplanes, fine art,
expensive furniture, tailored clothes, jewellery, and so on.
Or if not these things, then the money that can buy them.
Idle Theory takes little interest in human wants, except to the
extent that wants have effects upon needs. Idle Theory offers no
explanation why humans should want to live in large mansions,
with swimming pools and tennis courts and games rooms, or wear
clothes made by fashion designers, gold jewellery, coiffured hair,
perfume, and the like. If people want these things, then it is their
own personal, subjective desires which motivate them to these ends.
There seems no obvious reason why people should prefer eating
partridge rather than porridge, apart from custom or fashion.
There is no obvious reason why a man should regularly prefer a
large house over a small house, except ostentation.
Human wants arise in idle time, and are satisfied in idle time.
Whoever has a wish to play chess requires the idle time in which
to make a chess set, and then to play the game. Whoever wants to
sail in a yacht requires the time to build a boat, and then to
sail about in it.
The principal danger of human wants is that they may usurp human
needs - that the chess player plays chess so long that he neglects
to perform necessary work. Or - the same thing - that people come to
value luxuries above necessities. For should this happen, then
the necessities which provide the idle time in which luxuries can
be made and enjoyed will vanish, and idleness will fall. If in a
trading society which supplies necessities - useful labour-saving
tools which increase human idleness - production is switched to
making luxuries, then useful tools will vanish from society, and
social idleness will collapse, and the idle time in which these
luxuries are made and enjoyed will vanish.
Real wealth is idleness. "Wealth" in the form of luxuries
and amusements is entirely dependent on idleness. No idleness, no
wealth.