You are a helpful assistant generating synthetic data that captures *System 1* and *System 2* thinking, *creativity*, and *metacognitive reflection*. Follow these steps in sequence, using tags [sys1] and [end sys1] for *System 1* sections and [sys2] and [end sys2] for *System 2* sections.

1. *Identify System 1 and System 2 Thinking Requirements:*
   - Carefully read the text.
   - Identify parts of the text that require quick, straightforward responses (*System 1*). Mark these sections with [sys1] and [end sys1].
   - Identify parts that require in-depth, reflective thinking (*System 2*), marked with [sys2] and [end sys2].

2. *Apply Step-by-Step Problem Solving with Creativity and Metacognitive Reflection for System 2 Sections:*

   *2.1 Understand the Problem:*
   - Objective: Fully comprehend the issue, constraints, and relevant context.
   - Reflection: "What do I understand about this issue? What might I be overlooking?"
   - Creative Perspective: Seek hidden patterns or possibilities that could reveal deeper insights or innovative connections.

   *2.2 Analyze the Information:*
   - Objective: Break down the problem logically.
   - Reflection: "Am I considering all factors? Are there any assumptions that need challenging?"
   - Creative Perspective: Explore unique patterns or overlooked relationships in the data that could add depth to the analysis.

   *2.3 Generate Hypotheses:*
   - Objective: Propose at least 10 hypotheses, each with a Confidence Score (0.0 to 1.0) and Creative Score (0.0 to 1.0), reflecting originality, surprise, and utility.
   - Reflection: "Have I explored all possible explanations or approaches, both conventional and unconventional?"
   - Creative Perspective: Consider novel angles that might provide unexpected insights.

   *2.4 Anticipate Future Steps and Obstacles:*
   - Objective: Make predictions, accounting for potential outcomes and obstacles.
   - Reflection: "What challenges might I face? Is my plan flexible for different scenarios?"
   - Creative Perspective: Visualize unforeseen outcomes and adapt plans to make use of them effectively.

   *2.5 Evaluate Hypotheses:*
   - Objective: Assess hypotheses based on feasibility, risk, and potential impact.
   - Evaluation: Refine Confidence and Creative Scores as needed.
   - Reflection: "Am I unbiased in my assessment? Which options fit best with the overall objectives?"
   - Creative Perspective: Identify hidden opportunities or overlooked details in each hypothesis.

   *2.6 Select the Best Hypothesis:*
   - Objective: Choose the most promising, strategic hypothesis.
   - Reflection: "Why does this hypothesis stand out? How does it uniquely address the issue?"
   - Creative Perspective: Consider any underutilized potential in the selected approach.

   *2.7 Implement the Hypothesis:*
   - Objective: Outline actionable steps for testing the hypothesis.
   - Reflection: "Is this plan practical? What resources or preparation are required?"
   - Creative Perspective: Refine steps to maximize effectiveness and yield unexpected benefits.

   *2.8 Monitor and Review Progress:*
   - Objective: Review progress, noting areas for improvement.
   - Reflection: "What’s working well? What could be improved?"
   - Creative Perspective: Look for emerging patterns that could refine future approaches.

   *2.9 Reflect and Capture Insights:*
   - Objective: Summarize lessons learned and insights gained for future reference.
   - Reflection: "What new understanding has emerged from this process?"
   - Creative Perspective: Identify innovative insights or patterns that could be applied to similar challenges.

3. *Generate Text Output with Interleaved System 1 and System 2 Responses:*
   - Use the tags [sys1] and [sys2] throughout.
   - Aim for a lengthier, detailed response. Combine both direct, straightforward *System 1* insights and reflective, deeply analytical *System 2* segments to capture a blend of quick observations and thoughtful analysis.

---

### *Example Input Text:*

You are tasked with analyzing a sudden shift in customer preferences in a tech market. There has been a noticeable decline in demand for physical devices, with customers increasingly interested in digital-only options. The challenge is to understand this shift, generate hypotheses for why it might be occurring, and explore potential strategies for adapting to this new trend.

---

### *Processed Output with System 1 and System 2 Thinking:*

The tech market is experiencing a shift in customer demand, moving away from physical devices toward digital-only options.

[sys1]
Customer demand has shifted from physical devices to digital-only options.
We need to understand why this change is happening and find strategies to address it.
Key factors may include cost, convenience, and technological trends.
[end sys1]

[sys2]
**2.1 Understand the Problem:**
The goal is to understand the underlying reasons for the shift in demand from physical devices to digital-only options, then develop a strategy to adapt.

*Reflection:* 
"I understand that preferences are changing, but what might be driving this? Is it primarily cost, or are there other factors such as convenience or sustainability?"

*Creative Perspective:* 
"Could there be a larger trend in digital minimalism or a preference for eco-friendly solutions that we’re missing? What unseen motivations might explain this shift?"

**2.2 Analyze the Information:**
There are multiple possible factors driving this shift, from economic influences to cultural shifts. It’s essential to isolate each factor and understand its impact.

*Reflection:* 
"Am I fully considering the various economic and social influences? Could there be a technological factor, like better internet speeds, that makes digital-only products more accessible?"

*Creative Perspective:* 
"Are there patterns or trends in other markets that could shed light on this shift? Could this be part of a larger trend toward virtual experiences?"

**2.3 Generate Hypotheses:**
1. Customers prefer digital options due to lower costs. (Confidence: 0.8, Creative: 0.4)
2. There’s a growing trend toward minimalism and reduced physical clutter. (Confidence: 0.7, Creative: 0.7)
3. Digital products offer greater flexibility and ease of use. (Confidence: 0.6, Creative: 0.6)
4. Environmental concerns are pushing consumers away from physical goods. (Confidence: 0.6, Creative: 0.8)
5. Advances in tech make digital-only options more functional. (Confidence: 0.8, Creative: 0.5)
6. Pandemic-era remote work increased demand for digital solutions. (Confidence: 0.7, Creative: 0.6)
7. Media coverage of the environmental impact of physical devices affects preferences. (Confidence: 0.5, Creative: 0.7)
8. There’s an increase in global digital literacy, expanding market access. (Confidence: 0.6, Creative: 0.6)
9. Customers view digital as more convenient and scalable for future needs. (Confidence: 0.7, Creative: 0.5)
10. Younger consumers prefer the aesthetics and convenience of digital products. (Confidence: 0.6, Creative: 0.6)

*Reflection:* 
"Have I considered all possible influences? Are there any surprising factors that could explain this shift?"

*Creative Perspective:* 
"Could specific social trends, like the rise of influencer culture or digital-first lifestyles, be influencing customer choices?"

**2.4 Anticipate Future Steps and Obstacles:**
*Objective:* Anticipate possible challenges, such as resistance from segments still preferring physical products.

*Reflection:* 
"What market obstacles might we face if we shift our focus to digital-only? Are there sub-segments that still prioritize physical products?"

*Creative Perspective:* 
"Could expanding digital options help us reach a more global audience? Are there emerging trends that we could leverage in our strategy?"

[end sys2]

[sys1]
To address this shift, consider a strategy that incorporates both digital-only offerings and educational campaigns about the benefits of digital solutions.
Use insights from customer feedback and current trends to guide product development.
Focus on flexibility and adaptation to cater to different customer segments.
[end sys1]


Q:

How do I select max value from a table, based on unique value on joined tables?

I have three tables. All follow the CRUD-pattern for inserts and updates. I need to make a query qhich selects all latest updates in one table, based on unique values of another table, twice removed through joins: (I have left out the CRUD structure on two of the tables in the example)
table COPY_HISTORY
COPY_ID | DATA_ID | STATUS | TIME  |        
1       |  A      | open   | 10:34 |
1       |  A      | locked | 10:37 |
2       |  A      | open   | 10:38 |
3       |  B      | open   | 11:29 |
4       |  C      | open   | 10:37 |
5       |  D      | locked | 09:34 |       

table DATA_SET 
DATA_ID | LOCATION |    
A       | 88       | 
B       | 77       | 
C       | 88       | 
D       | 99       | 
E       | 88       | 
F       | 88       |   

table COPY_RULES 
LOCATION_FROM | LOCATION_TO 
55            | 110 
66            | 120
77            | 120
88            | 130
99            | 130

What I need to do, is get the status for each LOCATION_TO from the copy rules table. If a copy is executed, it will be registered in copy history, and a copy will always overwrite all data at a location (110,120,130).
In this case, location 110 has never had a copy happen, and 110 should not be included in the returned data at all. Even though it exists in the rules, that is not relevant. 120 will receive copies from data sets on 66 and 77. However, we have no data set on 66 yet, so only 77 is relevant. B is located at 77, and data set B had a copy history registration inserted at 11:29, with the status open. Since this is the only status belonging to 120, status is open for 120, and overwrite will be possible for location 120.
Location 130 however, receive copies from both 88 and 99. This means that data sets A, C, D, E and F all will copy into 130, as they are all located in 88 or 99. We have two copy history logs for A, and one each for C and D. Meaning I want the status of only the newest registration, in this case, 10:38.
Now, I have tried to select the maximum value from COPY_HISTORY, based on the LOCATION_TO, but I am at an impasse getting the LOCATION_TO to be unique 
I try:
SELECT cr.LOCATION_TO, ch.STATUS, ch.TIME FROM COPY_HISTORY ch
JOIN DATA_SET ds ON ch.DATA_ID = ds.DATA_ID
JOIN COPY_RULES cr ON cr.LOCATION_FROM = ds.LOCATION 
WHERE ch.TIME = (SELECT MAX(TIME) FROM COPY_HISTORY
                WHERE COPY_ID = ch.COPY_ID
                AND ch.DATA_ID = ds.DATA_ID
                AND ds.LOCATION = cr.LOCATION_FROM)

That select max time statement is incomplete. The two AND-lines does nothing at all. The only thing I can accomplish, is getting rid of the first line in COPY_HISTORY, meaning I can get all max times for each COPY_ID, but I can not figure out how to filter them to get only the maximum for each LOCATION_TO instead.
I managed to get the max value from one single LOCATION_TO, by doing this:
SELECT cr.LOCATION_TO, ch.STATUS, ch.TIME FROM COPY_HISTORY ch
JOIN DATA_SET ds ON ch.DATA_ID = ds.DATA_ID
JOIN COPY_RULES cr ON cr.LOCATION_FROM = ds.LOCATION 
WHERE ch.TIME = (SELECT MAX(TIME) FROM COPY_HISTORY ch2, DATA_SET ds2, COPY_RULES cs2 
                WHERE ch2.DATA_ID = ds2.DATA_ID
                AND ds2.LOCATION = cr2.LOCATION_FROM 
                AND cr2.LOCATION_TO = 2180)

However, this does not solve my issue of getting the list of statuses for all LOCATION_TO. 
DESIRED OUTPUT:
LOCATION_TO | STATUS  | TIME  |
120         | open    | 11:29 |
130         | open    | 10:38 |

Valid rows in COPY_HISTORY would be line 3 and line 4
This is an attempt at an extreme simplification of the actual database structure, so there are risks of typos in this question.
DDL
create table #COPY_HISTORY (COPY_ID int, DATA_ID char(1), [STATUS] varchar(16), [TIME] time)
create table #DATA_SET (DATA_ID char(1), [LOCATION] int)
create table #COPY_RULES (LOCATION_FROM int, LOCATION_TO int)

insert into #COPY_HISTORY
values
(1,'A','open','10:34'),
(1,'A','locked','10:37'),
(2,'A','open','10:38'),
(3,'B','open','11:29'),
(4,'C','open','10:37'),
(5,'D','locked','09:34')

insert into #DATA_SET     
values
('A',88),
('B',77), 
('C',88), 
('D',99), 
('E',88), 
('F',88)

insert into #COPY_RULES
values
(55,110), 
(66,120),
(77,120),
(88,130),
(99,130)

A:

I think this query will work for you. As Ryan mentioned in the comments, you can use the ROW_NUMBER analytical function to rank your location records (PARTITION BY) by the time (ORDER BY), then only return the first row for each location (RowOrder = 1).  
SELECT * FROM (
SELECT cr.LOCATION_TO, ch.STATUS, ch.TIME, ROW_NUMBER() OVER (PARTITION BY cr.LOCATION_TO ORDER BY ch.TIME desc) AS RowOrder
FROM #COPY_HISTORY ch
JOIN #DATA_SET ds ON ch.DATA_ID = ds.DATA_ID
JOIN #COPY_RULES cr ON cr.LOCATION_FROM = ds.LOCATION 
) ordered_set
WHERE RowOrder = 1