user: What was the Tiryns culture

assistant: <think>
Tiryns culture (2,200 - 2,000 BC) or Early Helladic III was an Early Bronze Age culture in Central Greece, Southern Greece and the Ionian islands (Part of Western Greece) that followed Eutresis and Korakou cultures, and preceded the Mycenean civilization. The "center" of the culture was the settlement of Tiryns that saw further development during the Mycenean period.

Metal and Terracotta: A unique pattern-painted dark to light human figurine appears in Tiryns culture's Lerna IV while old types of animal figurines do not continue. Metal is now more popular for the creation of weapons and tools, some examples are : A dagger, a nail, a pin from Lerna and three axes from Thebes.
Pottery: The best known type of pottery consists of two classes of pattern-painted ceramics : 1) Patterned ware that is a dark on light class, mainly in the Peloponnese. The ornament is geometric and almost exclusively rectilinear. 2) Ayia Marina ware that is a light on dark class, mainly in Central Greece. The ornament is similar to patterned ware. The dark paint on both wares is moderately lustrous and appears to be descended directly from the Urfirnis paint on Early Helladic II period.
Architecture: At Lerna and Olympia several "long houses" (megara) with two or three rooms and narrow alleyways are built. A tumulus is constructed over the ruins of the Helladic II House of the Tiles and for a long period no buildings are built in the specific area. Many large (for their period) buildings are constructed in Lerna but they often last for only one generation.
End: In around 2,000 BC, Early Helladic III and generally the Early Helladic periods end. Tiryns culture is followed by the Middle Helladic culture and Mycenaean Greece.</think>
Tiryns culture (2,200 - 2,000 BC) or Early Helladic III was an Early Bronze Age culture in Central Greece, Southern Greece and the Ionian islands (Part of Western Greece) that followed Eutresis and Korakou cultures, and preceded the Mycenean civilization. The "center" of the culture was the settlement of Tiryns that saw further development during the Mycenean period.

Metal and Terracotta: A unique pattern-painted dark to light human figurine appears in Tiryns culture's Lerna IV while old types of animal figurines do not continue. Metal is now more popular for the creation of weapons and tools, some examples are : A dagger, a nail, a pin from Lerna and three axes from Thebes.

Pottery: The best known type of pottery consists of two classes of pattern-painted ceramics: 1) Patterned ware that is a dark on light class, mainly in the Peloponnese. The ornament is geometric and almost exclusively rectilinear. 2) Ayia Marina ware that is a light on dark class, mainly in Central Greece. The ornament is similar to patterned ware. The dark paint on both wares is moderately lustrous and appears to be descended directly from the Urfirnis paint on Early Helladic II period.

Architecture: At Lerna and Olympia several "long houses" (megara) with two or three rooms and narrow alleyways are built. A tumulus is constructed over the ruins of the Helladic II House of the Tiles and for a long period no buildings are built in the specific area. Many large (for their period) buildings are constructed in Lerna but they often last for only one generation.

End: In around 2,000 BC, Early Helladic III and generally the Early Helladic periods end. Tiryns culture is followed by the Middle Helladic culture and Mycenaean Greece.

user: Given the following summary of the book "Human Compatible" by Stuart Russell, what is the author's proposal to overcome the limitations of the standard approach for developing AI?

assistant: <think>
Russell begins by asserting that the standard model of AI research, in which the primary definition of success is getting better and better at achieving rigid human-specified goals, is dangerously misguided. Such goals may not actually reflect what human designers intend, such as by failing to take into account any human values not included in the goals. If an AI developed according to the standard model were to become superintelligent, it would likely not fully reflect human values and could be catastrophic to humanity. Russell asserts that precisely because the timeline for developing human-level or superintelligent AI is highly uncertain, safety research should be begun as soon as possible, as it is also highly uncertain how long it would take to complete such research.

Russell argues that continuing progress in AI capability is inevitable because of economic pressures. Such pressures can already be seen in the development of existing AI technologies such as self-driving cars and personal assistant software. Moreover, human-level AI could be worth many trillions of dollars. Russell then examines the current debate surrounding AI risk. He offers refutations to a number of common arguments dismissing AI risk and attributes much of their persistence to tribalism—AI researchers may see AI risk concerns as an "attack" on their field. Russell reiterates that there are legitimate reasons to take AI risk concerns seriously and that economic pressures make continued innovation in AI inevitable.

Russell then proposes an approach to developing provably beneficial machines that focuses on deference to humans. Unlike in the standard model of AI, where the objective is rigid and certain, this approach would have the AI's true objective remain uncertain, with the AI only approaching certainty about it as it gains more information about humans and the world. This uncertainty would, ideally, prevent catastrophic misunderstandings of human preferences and encourage cooperation and communication with humans. Russell concludes by calling for tighter governance of AI research and development as well as cultural introspection about the appropriate amount of autonomy to retain in an AI-dominated world.</think>
Russell suggests that the AIs should be trained in a way that makes them gradually gain knowledge of what is truly beneficial to humans. AIs developed in this fashion would cooperate with humans while leaving them with a high enough level of autonomy.

user: What is the Role of the Fourth Official in Football?

assistant: The main role of the Fourth Official in football is assisting the referee in his control of the match. All the officials should do so under the FIFA Football Laws of the Game

The 4th Official would officiate if any of the other three match officials (referee or assistant referees) are unable to continue to administer the rules and regulations.