u/sneaky_imp

We have a 2012 Subaru Outback and just had the head gasket replaced, which was not cheap. The car was running great for about a week and then suddenly this morning, we had a bunch of dashboard warning lights come on and the car feels like it might almost stall when you try to go from a standstill.

Upon starting the car, we see a variety of dashboard warning lights:

1. The coolant temp indicator continually flashes red and blue. This does not change if you let the car idle for a minute or two nor does it change if you drive the car.

2. The CHECK ENGINE light comes on in yellow and stays on.

3. The Vehicle Dynamics Control warning light comes on in yellow and stays on.

4. The word BRAKE in red flashes continually.

The car starts easily and sounds pretty smooth. The idle speed from a cold start this morning was considerably slower (about 800RPM) than it was yesterday (about 1100RPM) when the car was operating just fine.

If you put the car in gear, it still seems OK.

If you try to start going anywhere, it nearly stalls and sort of jerkily lurches forward but then seems to operate OK once it's in motion and the engine is at a slightly higher rev.

Can anyone help me diagnose this problem? The gasket replacement was expensive and the car was in the shop for weeks. If this is a simple problem we want to get it fixed correctly and promptly. If it's a serious or expensive problem, we will probably have to try and buy another car.

I have a data series of daily streaming counts for a song. My spreadsheet has the date in column A and the number of streams in column B. There are 960 rows/records in the spreadsheet dating from 2024/01/01 to 2026/08/17.

We hired a marketing company to promote the song for 3 weeks. Their first posts on social media started on 2026/07/27. They ran until 2026/08/17. I am trying to assess whether our money was well invested or not. Their dashboard stats are not useful to us because they show the number of views and social media engagement (e.g., TikTok), whereas we are interested in the number of times our song gets streamed on a streaming platform (e.g., Spotify).

I know how to calculate means and standard deviations, and have done so for various timeframes (e.g., yearly, during the promotion, the 22 days prior to the promotion, etc) but I do not know how to:

1. determine if the 22-day marketing campaign had a statistically significant impact on our daily streaming numbers

2. determine if the impact on streams, if any, justifies the money invested, call it **CampaignCost**.

Can someone advise me how to go about this? We might assume somewhere between 0.001 and 0.003 USD of revenue per stream.

I know there is surely some well known statistical test to determine whether my daily streams show a statistically significant increase or decrease, but I cannot remember what this test is called or how to calculate it.

I might add that there are potential complications:

1. Streams have grown significantly year over year. Average daily streams in 2024 were 135k, in 2025 were 250k, and so far in 2026 are 259k.

2. Some unexplained events in the real world have prompted surges in streaming numbers. E.g., our streams surged upward for a month around December 2024 and remained elevated for months then gradually declined. Another unexplained surge arrived around Feb 5, 2026 and persisted for months but then started gradual decline.

3. The streams show a weekly cycle, lowest on Sundays, peaking on Thu or Fri.

Any help would be much appreciated.

I have a little video editing experience using Adobe Premiere Pro, but I'm not sure how to go about this. I think I'd like to switch to DaVinci Resolve but would like to ask the community which software would make this easier. I don't have a mac so Final Cut is not an option.

I record music and film each performer (landscape, with an iphone) as they play. Each instrument (drums, bass, multiple guitar tracks, and singing) usually performs multiple takes of the song, one at a time. For example, the drummer might play the entire song five or ten times and each time he plays the song we call it a "take." I then take the best parts of each take to make the final instrumental performance. In the drummer's case, I might use take 3 for the first part of the song, take 8 for a brief section in the bridge, and then take 7 for the last part of the song.

I'd like to create a video project where I have a single video sequence of each performer (drums, bass, guitars, singer) playing the entire song -- but I want each performer's sequence to only include the parts of the takes I actually used in the final recording. In the example above, the drummer sequence would just have a part of take 3 for the beginning, part of take 8 for the bridge, and part of take 7 for the end of the song. I don't mind if you can see the edits in this sequence, and I don't care about keeping takes, or parts of takes, that are not used in the final recording.

I'd like to be able to export from this video project two types of video:

1. a single performer playing the song from start to finish full screen

2. a montage of the various performers playing the song together, perhaps split screen or tiled or sequential edits showing the interesting moments from various players.

Can someone outline a workflow that would make this efficient? Any advice would be much appreciated.