using current methods of space travel how long would it take for humans to colinse the galaxy...?

.. and eventually the universe?

thousands of years, maybe tens of thousands

Infinity

What is colinse?

The fastest thing we have is about 150,000 mph. the galaxy is about 100,000 light years across.

A light year is about 6 trillion years.

So to go from one end of the Milky Way to the other without stopping would take 4,000,000,000,000 (4 trillion) years.


The closest galaxy is Andromeda, it's about 2.5 million light years away. So it would take 100 trillion years to get there. The rest of the universe would take quadrillions of years to get to.

Colinse? Is that like a shampoo?

Unless we improve speed and also ability to terra form planets, never is the answer.

To put this in perspective, its been over 30-years since Voyager 1 was launched and it is now about 9.5 billion miles away and considered to be the farthest man-made object in space. The nearest star to our Sun is Proxima Centauri (approx. 4.22 light years); so, at that speed it would take about 160,000 years to reach the nearest star. Consequently, unless mankind creates "warp drive" or learns how to bend space, I don't see intergalactic travel any time in humanity's existence.

using current technology it is completely impossible

and the milky way alone has 500 thousand million stars, yet the total population of earth is less than 7 thousand million people - so there are not even enough people to do the backyard

We couldn't using existing technology. Assuming we could move at a good clip of 20,000 mph, it would take around 34000 years to get to the neaqrest star. We could never take enough supplies.