Blog · AI and purpose

Do we need AI?

October 2026 · 6 min read

The honest answer is not yes or no. It is "for what, for whom, and at what cost?" Here is a fair look at both sides, and a simple way to decide for yourself.

Ask ten people whether we need AI and you will hear ten confident answers. One says it will cure diseases and end poverty. Another says it will take our jobs, flood the world with fake content and make us lazy thinkers. A third says it is overhyped autocomplete and will fade like other tech fads.

Each of them is partly right. That is what makes the question hard. AI is not one thing. It is a family of tools, and a tool is only as good or as bad as the job we give it.

So instead of asking "Do we need AI?", it helps to ask three smaller questions. What problems does it actually solve? What does it cost us? And who decides how it is used?

The case for AI

Let us start with what is hard to argue against.

It sees patterns humans miss

Modern AI is very good at finding patterns in huge amounts of data. In medicine, it helps doctors read scans, flag early signs of disease and sort through research faster than any person could. In science, AI systems have predicted the shapes of proteins, a problem that took human researchers decades of slow, expensive work. These are not small wins. They can mean earlier diagnoses and new medicines.

It opens doors that were closed

For a person who is blind, AI can describe a photo or read a menu aloud. For someone who cannot type easily, it can turn speech into text. For a student in a village with no good tutor, it can explain a maths problem patiently, at midnight, in their own language. For a small shop owner, it can write the product listing they never had time for. Tools like these spread ability, not just efficiency.

It removes drudgery

A lot of work is not meaningful. Copying data between forms, writing the same email for the hundredth time, searching through old files. When AI takes over that kind of work, people can spend more time on judgment, relationships and craft, the parts of a job that usually feel worthwhile.

It can do dangerous work

Inspecting pipelines, sorting hazardous waste, defusing explosives, monitoring disaster zones. Where a machine can take the risk instead of a person, most of us would say it should.

The case against, or at least for caution

Now the other side, which deserves the same respect.

It can be confidently wrong

Generative AI produces answers that sound right, whether or not they are. In casual use this is annoying. In medicine, law or finance, it can be harmful. A tool that is right most of the time, but cannot tell you when it is wrong, needs careful handling.

It changes work faster than people can adapt

Past technologies also replaced jobs, and new jobs eventually appeared. But "eventually" can mean a lost decade for the people in between. AI reaches into thinking work, writing, analysis, design, coding, which many people chose precisely because it felt safe from machines. The transition may be uneven and painful even if the long-run outcome is good.

It can concentrate power

Building the most capable AI systems takes enormous amounts of money, data and computing power. Only a handful of organisations can do it. When a few companies control a tool that shapes how billions of people search, learn and work, questions of fairness and accountability become serious.

It has real costs we do not see

Training and running large models uses a lot of electricity and water for data centres. AI also makes it cheap to create fake images, voices and news at scale. Neither cost appears on the screen when you type a question.

It can weaken the skills we stop using

If a calculator does all your arithmetic, you lose your feel for numbers. If AI writes every email, plans every trip and answers every question, we may slowly lose the ability to think things through ourselves. This is not certain, but it is worth watching, especially for children who are still building those skills.

What both sides often miss

Optimists sometimes talk as if benefits will spread automatically. History suggests otherwise. The printing press, electricity and the internet all made the world richer, but who gained first, and who was left behind, depended on choices: laws, education, access and ownership.

Critics sometimes talk as if AI can be stopped or ignored. That is also unlikely. The tools already exist, are cheap to use, and are spreading through every industry. The realistic question is not whether AI will be used, but how wisely.

There is a quieter point too. "Do we need it?" is a different question from "Do we want it?" We did not need cars to live, but they changed what kind of life was possible. Need is about survival. Want is about the life we choose. Both matter.

A simple test for your own life

You do not have to settle the global debate to decide how you use AI. Try asking these four questions before you hand a task to a machine:

  1. Does it free me, or replace me? If it removes a chore so you can do something better, good. If it removes the very thing that gives you growth or joy, think twice.
  2. Can I check the result? Use AI freely where you can verify the output. Be careful where you cannot.
  3. Would I be comfortable if it were wrong? A bad holiday plan is fine. A bad medical decision is not.
  4. Am I still learning? The best use of AI makes you more capable over time, not more dependent.

So, do we need AI?

We need some of what it can do. We need faster medical research, better access to learning, relief from dangerous and dull work. Those are real goods, and refusing them would hurt real people.

We do not need to use it for everything. We do not need it to think for us, decide what matters to us, or stand in for the people in our lives. And we certainly need rules, education and public debate about who controls it and who benefits.

The wise position is neither fear nor worship. It is something older and calmer: use the tool for what it is good at, keep your own hands on the things that make you human, and keep asking whether the trade is worth it.

Use the machine. Keep the fire.

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