Until 2060, Christians will remain the largest religious group. By 2060, Islam will become the main world religion that will take the place of Christianity. 3.23 billion Muslims and 2.99 billion Christians.
The main reason for the rapid growth of Muslims is a high birth rate, and not the departure of people in Islam. Moreover, the main driver of this process will not be the countries of the Middle East, but ... India and the USA. India - due to the rapid general increase in the population, America - due to mass immigration. The number of Buddhists of the world is expected to remain approximately at the same level due to a low birth rate and aging of the population in countries such as China, Thailand and Japan.

This is just a forecast based on current demographic trends. In the future, various kinds of scientific and technological revolutions may occur, which will affect the worldview of people in a completely different way. It also does not take into account the consequences of wars taking place on the planet. If we take into account the consequences of wars, then Hinduism will come in second place.
The Future of World Religions: Demographic Growth Projections, 2010-2050
Why Islam will soon become the largest religion in the world
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After they get to Earth-like planets by 2160
Near-space scans have yielded no results, and the nearest Earth-like planets are 55 parsecs from Earth

Humanity will find either intelligent beings or the remains of ancient civilizations
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No, he will stay.
A source close to the Kremlin, who wished to remain anonymous, spoke about Vladimir Putin's plans. He denied rumors that the allegedly incumbent President plans to leave his post. He assures that other candidates are out of the question.

After the elections, little will change in the country
Why and how Putin can remain President of Russia for the next term
It became known who will be President after Putin in 2024: will the Russian leader leave his post in 2023 - latest news
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Because of the recession, because of the expectation of quick victories, because of ambitions
Sometimes war is used to distract from internal problems. The struggle for resources (oil, gas, water, rare metals) intensifies. This is especially noticeable in regions with unstable politics. Very often wars begin when a country's leadership believes that victory will be quick and cheap. For example, Russia-Ukraine. Sometimes countries start a war when they believe the international situation is favorable to them. Like the USA-Iran or USA-Venezuela. Regional conflicts and escalation. Like India-Pakistan, Israel-Gaza Strip, Cambodian-Thai conflict, Afghan-Pakistani war.

After the end of the Cold War in 1991, the world became less predictable. Previously, two superpowers — the United States of America and the Soviet Union — restrained each other. Now several centers of power are emerging: China, Russia, the USA, regional powers like Iran and Turkey. When forces are distributed among many players, there are usually more conflicts.
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