Lateral Thinking and Vertical Thinking are Complementary
Lateral thinking generates ideas and approaches, while vertical thinking develops and implements them. The two processes are complementary, not antagonistic, and both are necessary for effective problem-solving.
THE IDEA
Lateral thinking and vertical thinking are complementary
Some people are unhappy about lateral thinking because they feel that it threatens the validity of vertical thinking. This is not so at all. The two processes are complementary not antagonistic. Lateral thinking is useful for generating ideas and approaches and vertical thinking is useful for developing them. Lateral thinking enhances the effectiveness of vertical thinking by offering it more to select from. Vertical thinking multiplies the effectiveness of lateral thinking by making good use of the ideas generated.
Most of the time one might be using vertical thinking but when one needs to use lateral thinking then no amount of excellence in vertical thinking will do instead. To persist with vertical thinking when one should be using lateral thinking is dangerous. One needs some skill in both types of thinking.
Lateral thinking is like the reverse gear in a car. One would never try to drive along in reverse gear the whole time. On the other hand one needs to have it and to know how to use it for manoeuvrability and to get out of a blind alley.
When to use it
Brainstorming sessions: Use lateral thinking to generate diverse ideas, then vertical thinking to evaluate and implement the best ones.
Problem-solving: When a standard approach fails, apply lateral thinking to explore new angles, then return to vertical thinking for detailed analysis.
Decision-making: Combine vertical thinking (logical analysis of options) with lateral thinking (creative alternatives) to make more robust decisions.
Innovation: Use lateral thinking to challenge assumptions and generate novel concepts, then vertical thinking to develop them into practical solutions.
FROM THEORY TO EVERYDAY LIFE
In practice
Product Brainstorming
A team uses lateral thinking to generate a wide range of unconventional product ideas (e.g., a smart mirror that also plays music). Then they use vertical thinking to evaluate feasibility, design specifications, and create a step-by-step development plan.
Stuck on a Math Problem
A student is stuck on a calculus problem using standard methods (vertical thinking). They step back and use lateral thinking to consider visual or alternative approaches, then return to vertical thinking to work through the new solution logically.
A MOMENT TO REFLECT
Put it to work.
Think of a recent problem you solved. Did you rely more on lateral or vertical thinking? How could the other approach have improved the outcome?
When was the last time you hit a mental block? What lateral thinking technique might have helped you break free?
How can you deliberately practice switching between lateral and vertical thinking in your daily tasks?
Often confused with
CONTINUE THE CONVERSATION
Source texts
- Lateral Thinking A Textbook of Creativity (Edward de Bono)