These may be practical limits, but are real enough.

The practical upper limit is likely to be higher with modern materials.

It's much closer to the truth to say there are no practical limits at all and reality is whatever people decide to make it.

History suggests these methods are no more likely to work than past efforts that have run up against political and practical limits.

This is an example of the practical limits to security in the post-9/11 world.

The practical limit was about 80 aircraft at one time.

We do not yet know the practical limit of long-term memory capacity.

There are some practical limits to going his own way, he concedes.

But the issue could have just as much to do with the practical limits on making a satisfying film.

And in fact there's no practical limit to how many you can have.