By the end of the 1990s, all practical limits to patents on software had been dismantled, sparking the software patent arms race that continues to this day.

FORBES: As Supreme Court Software Patent Ban Turns 40, It's Time To Stop Ignoring It

Despite such exaggeration, Mr. Hewitt makes a powerful case that blogs are a decentralized discussion forum free from the practical limits that the mainstream media impose on individual expression.

WSJ: Caught in the Web

This puts political and ethical limits on how far the drive for economic equality ought to go. (Strictly practical limits, as well, since too noble a determination to take from the rich to give to the poor will end up impoverishing everyone.) It also means that perfect economic equality should never be embraced, even implicitly, as an ideal.

ECONOMIST: Poverty and inequality

There are practical, and severe, limits to how isolationist America can become without gravely injuring itself.

ECONOMIST: America's place in the world

He then went on to explain how those who considered practical physics from new perspectives had a way of taking science and its application beyond the limits of what standard approaches found to be possible.

FORBES: Looking into the Far Future of Chips

The bill would also set limits on so-called issue ads, political advertisements ostensibly about an issue but with the practical effect of hurting or helping a specific candidate.

CNN: House to take up campaign finance reform

The McCain bill, and its companion bill in the House, would set limits on so-called issue ads -- political advertisements ostensibly about an issue, but with the practical effect of hurting or helping a specific candidate.

CNN: House members cast eyes toward finance debate

The McCain-Feingold bill and its companion bill in the House would set limits on so-called issue ads -- political advertisements ostensibly about an issue but that have the practical effect of hurting or helping a specific candidate.

CNN: Campaign finance reform dies in House for now