# IX: The Irresistible and the Immovable explained — Invaders from the Infinite

> Chapter companion for Invaders from the Infinite by John W. Campbell.

## What happens

Arcot, Morey, and Wade work with the Talsonian scientist Stel Felso Theu to understand and replicate a weapon that creates artificial matter. After examining the Talsonian's apparatus, Arcot and Morey quickly construct a more advanced version aboard their ship, demonstrating the ability to create, shape, and control a ball of artificial matter that is either irresistible in motion or immovable when static. Arcot explains the physics behind the phenomenon, linking it to the ship's space-curving drive, and reveals the weapon's potential as a decisive tool in the war.

## Themes in this chapter

### The Nature of Power and Responsibility

The creation of an irresistible/immovable weapon raises questions about the ethical use of such power in warfare.

### The Value of Knowledge and Science

Arcot's rapid understanding and improvement of the Talsonian technology highlight the importance of scientific knowledge and cross-species collaboration.

## Character check-ins

### Arcot

Leads the examination of the Talsonian weapon and rapidly constructs an improved version, explaining the underlying physics.

### Morey

Assists Arcot in understanding and replicating the artificial matter apparatus, contributing to the rapid development.

### Wade

Works alongside Arcot and Morey to build the new device aboard the ship.

### Stel Felso Theu

Demonstrates the original Talsonian weapon and is astonished by the terrestrians' quick mastery and improvement of the technology.

## Key lines

> It is, as long as its energy holds out, absolutely irresistible! ... It is then immovable! It is either irresistible in motion, or immovable in static condition. It is the irresistible and the immovable!

The artificial matter is either unstoppable when moving or unshakable when stationary, depending on its energy state.

_Arcot summarizes the dual nature of the weapon, explaining its potential as both an offensive and defensive tool._

> You look at my apparatus fifteen minutes, and then work for an hour—and you have apparatus far more effective than ours, which required years of development!

Stel Felso Theu expresses amazement that the terrestrians could replicate and improve his weapon in just over an hour.

_Highlights the technological gap and the terrestrians' advanced understanding of physics._

## Links

- HTML: https://www.betterreads.online/discover/invaders_from_the_infinite_se/chapters/ix-the-irresistible-and-the-immovable
- Book: https://www.betterreads.online/discover/invaders_from_the_infinite_se
- All chapters: https://www.betterreads.online/discover/invaders_from_the_infinite_se/chapters