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Reader's Bank_Level 8_Unit 07                                    Reading Text

Some time ago, scientists carried out a simple experiment on a barracuda, a large predatory fish well known for its violent behavior. They put a barracuda into a big aquarium with some small fish called mackerel.

As they expected, the hungry barracuda attacked the mackerel. But the scientists placed a glass panel between them to see what would happen to them.

Not noticing there was a glass panel, the barracuda tried to attack the mackerel in vain again and again. After bumping its nose repeatedly, the barracuda finally quit trying.

Then, the barrier was removed. Interestingly, thereafter, the barracuda would swim only to where the barrier had been and stop. It believed that the glass panel was still there!

Just like the barracuda, many people stop trying after experiencing failure. This fear limits our growth even though failure is often a step toward success.

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In 1982, Monsanto, the world’s largest seed company, succeeded in modifying a plant cell genetically for the first time in history. The plant cell contained many desirable qualities. These included faster growth, higher yields, and greater resistance to pests. Over time, major companies like Dupont and Syngenta have joined Monsanto. In fact, most of the GM crops on the market come from these companies.

Since people began eating GM foods, many health problems seem to have increased. Allergies, even in children, have become much more common. We have also seen an increase in different types of cancer. What’s worse, more babies are being born with defects. These are believed to be just a few of the potential dangers of GM foods. People around the world have protested against these seed companies. Organizations such as Greenpeace and the Organic Consumers Association are demanding labels on GM foods. However, the companies have mostly ignored public concerns. They may fear that consumers will avoid foods with GM labels. This has increased consumer distrust in the safety of GM foods. Some people feel that this proves these seed companies have something to conceal.

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A digital twin is a virtual model of something real—a machine, a building, or even a city. It’s like a smart mirror that shows not just what’s outside but also what’s happening inside. By linking real and digital systems, it gives real-time data and lets us test ideas through simulations. This tool helps people spot problems early and find safer, smarter ways to improve things. That’s why digital twins are becoming key tools in many important fields. Singapore is a great example. The city’s full digital twin tracks traffic, pollution, and weather. It helps city officials design better roads, respond faster to emergencies, and monitor safety in real time. Cities aren’t the only ones; healthcare also uses digital twins to improve care. Doctors use organ twins in virtual simulations, allowing surgeons to practice before real operations. This helps prevent mistakes and protect patients. A digital twin acts like a mirror that we think reflects the world in smarter ways and shows us how to build, heal, and imagine a better future.