I'm glad someone pointed that out. They even have call and put options, and thousands of FPGAs in Chicago trying to arbitrage deviations from put-call parity from market open to market close.
I have my own travel story involving DB. I had a ticket for a Lufthansa flight from Frankfurt am Main to Warsaw. When I tried to check-in online a day before the flight it told me I had to do it at the airport. I fly a bit, so I knew what that meant - they overbooked the flight. The next day I got my "no aircraft entry guaranteed" boarding card of shame at the airport and learned at the gate that they overbooked the plane by three persons! After explaining my EU passenger rights, I got them to confirm my €250 compensation and since I was in an adventurous mood headed for the Frankfurt Flughafen Fernbahnhof train station.
The manned DB Travelcenter was still open so I walked in and asked for an international ticket to Warsaw. The gentleman (who spoke fluent English) typed a bit on the computer and told me he cannot sell a ticket for the Berlin-Warsaw leg of the journey due to a "system error on the Polish side". I knew that probably meant the Berlin-Warsaw-Express is at full capacity again and they don't sell tickets with no seat indicated for that route. I asked for a ticket to Berlin instead (€207, 2nd class) and went for a hamburger - still had about an hour until the train.
The train was initially supposed to arrive delayed 5 minutes but that was soon to change. The delay kept ticking up to 20 minutes, 45 minutes, 1 hour (around this time the DB travelcenter closed for the night) then two hours then cancelled altogether. I wasn't sure if my ticket is valid for the next train (the DB website was a bit vague about that) so I called my friend in Hamburg who confirmed I was good to jump onto the next train which would arrive on schedule in another three hours. I tried getting a Capri-Sun from a vending machine but it got stuck and wouldn't fall out. So I sat at the empty station with noting but rats as company until 3AM when the next Berlin-bound train arrived on time. In Berlin I got out at Sudkreutz and jumped onto a FlixBus to Poznań (€22) and stayed the night over at my friend's place (I badly needed a shower at that point) before taking a train to Warsaw the next day (€16, 2nd class).
Now, I technically did eventually use my Frankfurt-Berlin ticket but I was quite annoyed at DB so I applied for a reimbursement due to a cancelled train, which was granted in full. I also applied for reimbursement of the plane ticket from Lufthansa which was also granted. With the additional €250 compensation for denied boarding I actually made money on that little adventure but I probably wouldn't do that again. Gotta check in earlier from now on.
The step to go to ARM or risc v based controllers is easy. That's what I did with V3. Gives a tremendous performance boost and costs 1/2 of that old AVR.
I'm curious what MCU you landed on, but also a suggestion. If you could move the pictures to a different repo (or branch at least) that would make much easier to download. Even now a shallow clone takes ≈20 MB.
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