Multiplayer video games are games that allow multiple players to participate and interact with each other, either cooperatively or competitively, within the same game environment. This can take place through various platforms, including consoles, PCs, and mobile devices. There are several types of multiplayer games, including: 1. **Local Multiplayer**: Players compete or collaborate in the same physical location, often using the same console or device. This can include split-screen or shared screen gameplay.

Video game control methods refer to the various ways players interact with video games, allowing them to control characters, navigate environments, and perform actions within the game. These control methods can vary widely based on the type of game, the platform, and the player's preferences. Here are some of the most common control methods: ### 1. **Game Controllers** - **Console Controllers**: Standardized controllers used with gaming consoles (e.g., PlayStation, Xbox, Nintendo Switch).

Video game glitches are unintended errors or faults in a video game's programming that can cause it to behave in unexpected ways. These can manifest in various forms, including: 1. **Visual Glitches**: These may involve graphical issues such as characters appearing distorted, textures not loading correctly, or objects behaving in bizarre ways, like floating or clipping through the environment.

"Fog of war" is a concept often used in military strategy and tactics, referring to the uncertainty and confusion that can occur in the midst of battle. It describes the limited knowledge that a commander has about the enemy's movements, capabilities, and intentions due to various factors such as terrain, lack of reconnaissance, the chaos of combat, and misinformation. This uncertainty can affect decision-making and ultimately influence the outcome of battles and wars.

A "griefer" is a term commonly used in online gaming and digital communities to describe a player who deliberately irritates or harasses other players. This can be done through disruptive behavior, such as destroying other players' creations, stealing resources, or engaging in tactics that ruin the gameplay experience for others. Griefers often seek to provoke reactions from other players or simply enjoy the chaos their actions create.

"Hack and slash" is a genre of video games that typically focuses on fast-paced combat and the melee action of defeating enemies through direct attacks. The term can also apply to certain types of literature and film, particularly those featuring action-oriented narratives. Here are some key features of hack and slash games: 1. **Gameplay Mechanics**: Hack and slash games often involve the use of melee weapons, allowing players to engage in direct combat with opponents.

The key question is: why is this not symmetrical?

One answer is: because one of the twin accelerates, and therefore changes inertial frames.

But the better answer is: understand what happens when the stationary twin sends light signals at constant time intervals to each other. When does the travelling twin receives them?

By doing that, we see that "all the extra aging happens immediately when the twin turns around":

Another way of understanding it is: you have to make all calculations on a single inertial frame for the entire trip.

Supposing the sibling quickly accelerates out (or magically starts moving at constant speed), travels at constant speed, and quickly accelerates back, and travels at constant speed setup, there are three frames that seem reasonable:

If you do that, all three calculations give the exact same result, which is reassuring.

Another way to understand it is to do explicit integrations of the acceleration: physics.stackexchange.com/questions/242043/what-is-the-proper-way-to-explain-the-twin-paradox/242044#242044 This is the least insightful however :-)

Bibliography:

Affiliation: University of São Paulo.