How Far Can We Go? Limits of Humanity.

It is, for all practical purposes, impossible.

This was never about practical purposes. It's about what is physically possible. It's sad how intellectually dishonest you're being by pretending otherwise.

But to humor your earlier complaint, I will go through your 'arguments' one by one.

If we sent a probe traveling at 0.999 c, it would still take over 65 million years for the probe to arrive

Yes.

further 65 million years for confirmation of its arrival (on the unfathomably slim chance that it's even able to communicate to us at all).

Yes. Thankfully its arrival is not contingent on its ability to communicate back.

we aren't going to have millions of generations of scientists all dedicated to making sure this one probe reaches the Supercluster.

That is true. I'm not sure why you would have millions of generations of scientists involved at all though. Even if it were a probe that was to report back like you keep insisting on, there would not be interaction in transit, especially as it got further away.

It's a waste of time, money, and resources.

Exactly my point.

The chances of such a program even lasting the duration is extraordinarily slim.

Yes.

Who is going to ensure that the program is upheld for 100+ million years?

Nobody.

I have more chance of winning every Powerball from now until the day I die.

Okay.

It is, for all practical purposes, impossible.

Again, this is about what is physically possible, not what is practical. Nobody would want to send a probe out of the Local Group when we can't even work on an interstellar level.

The probability of it failing is basically 1 - we can't keep track of a probe millions of light years away

Yes.

communication with the probe would be impossible

Yes.

re-directing it if it veers of course

What do you think is in the space between galaxy groups that are capable of veering an object moving .5c off course?

ensuring it can survive the harsh environment of deep space

I'm not sure cosmic rays would do too much to what is essentially a glorified bullet.

ensuring it avoids all space debris and any obstacles in its way for the duration of the trip

Again, how much space debris and obstacles do you think are in-between galaxy groups?

are all things we cannot and will not be able to do at any point in the foreseeable future.

are all things that are unnecessary for a man-made object to reach the Virgo Cluster.

Simply saying "b-b-but it could be possible, eventually!" isn't an argument and shouldn't be treated as such.

In a discussion about what is theoretically possible under the known limits of physics, that is exactly the point.

Anything is "theoretically" possible.

No it's not. It's not theoretically possible to reach further away galaxy groups because the distance between us increase faster than the speed of light.

It is theoretically possible to accelerate an object to 0.11c (just over the minimum required) however.

Really, this whole chain would never have happened if you hadn't tried to inject 'practical purposes' into an arbitrary example the guy made to show that close galaxy groups 'move away' from us much slower than far away galaxy groups.

/r/videos Thread Parent Link - youtu.be