Tails's inventions can be roughly categorised into 5 types:
1. Useful gadgets for daily use
2. Weird but endearing pieces of tech
3. Truly ingenious achievements of technology
4. Geneva Conventions violations
5. [REDACTED]

seen from United States
seen from Switzerland

seen from Germany
seen from United States
seen from United States
seen from China
seen from Switzerland

seen from Slovenia
seen from United States
seen from China

seen from United States
seen from United States

seen from United States
seen from United States

seen from Slovenia
seen from United States
seen from Germany
seen from United States
seen from China
seen from Germany
Tails's inventions can be roughly categorised into 5 types:
1. Useful gadgets for daily use
2. Weird but endearing pieces of tech
3. Truly ingenious achievements of technology
4. Geneva Conventions violations
5. [REDACTED]
Silver the hedgehog rarely speaks of the future. Something about having knowledge of the future events being dangerous etc.
He does talk about small things though. Like the cuisine or hobbies people do in his time. Someone asked him once if he had parents. He said that of course he had parents, how could he not!
But when asked about their names he froze. Not because he didn't want to share, mind you. But because he couldn't remember his parents names. Nor their faces for that matter. The terror in his eyes grew for a few more seconds.
Until he blinked, relaxed and continue to chatter, though on a different topic. The one he was talking with, clearly unsettled, decided to drop the subject as well.