Ask Science
Ask a science question, get a science answer.
Community Rules
Rule 1: Be respectful and inclusive.
Treat others with respect, and maintain a positive atmosphere.
Rule 2: No harassment, hate speech, bigotry, or trolling.
Avoid any form of harassment, hate speech, bigotry, or offensive behavior.
Rule 3: Engage in constructive discussions.
Contribute to meaningful and constructive discussions that enhance scientific understanding.
Rule 4: No AI-generated answers.
Strictly prohibit the use of AI-generated answers. Providing answers generated by AI systems is not allowed and may result in a ban.
Rule 5: Follow guidelines and moderators' instructions.
Adhere to community guidelines and comply with instructions given by moderators.
Rule 6: Use appropriate language and tone.
Communicate using suitable language and maintain a professional and respectful tone.
Rule 7: Report violations.
Report any violations of the community rules to the moderators for appropriate action.
Rule 8: Foster a continuous learning environment.
Encourage a continuous learning environment where members can share knowledge and engage in scientific discussions.
Rule 9: Source required for answers.
Provide credible sources for answers. Failure to include a source may result in the removal of the answer to ensure information reliability.
By adhering to these rules, we create a welcoming and informative environment where science-related questions receive accurate and credible answers. Thank you for your cooperation in making the Ask Science community a valuable resource for scientific knowledge.
We retain the discretion to modify the rules as we deem necessary.
view the rest of the comments
Since you said 'realistically' let's assume it's using wormholes (which are in fact "possible" arrangements of spacetime in General Relativity). Note that actual wormholes would not be flat, they would be spheres, but that's besides the point.
Best number I could find for the energy needed to hold a person-sized hole open is from Here.
"negative mass-energies on the scale of Jupiter are required (-1.898 x 10^27 kg)"
Note that we don't have a method to produce Any negative mass (antimatter is still positive mass-energy).
There are things like the Casimir effect but you can't take that negative energy and move it elsewhere or concentrate it as far as I understand.
So the answer to your first question already puts this Way out of the realm of having meaningful answers to the others.